Harry DeArmond and Bud Rowe were each granted several Patents by The U.S. Government. Some of the Company’s employees were also named on several Patents.
Details of these Patents are listed in this brief synopsis. The complete Patent is shown below. Patents are listed in ‘Date of Grant’ order.
NOTE: Reproduction of the Patents below is by kind permission of the United States Patent and Trademark Office.
Patent application filed September 1, 1934 by H. N. Rowe for Electrodynamic Speaker Unit, granted December 24, 1935, No. 2,025,127
Patent application filed March 20, 1946 by Harry DeArmond for Guitar Magnetic Microphone, granted November 30, 1948, No. 2,455,046
The drawings included with this Patent show a single-slot version of the archtop attachable pickup Model FHC. This is the Patent Number stamped on the cover of the Model FHC-C pickup
Patent application filed October 11, 1946 by H. N. Rowe for Switch Volume Control, granted January 27, 1948, No. D 148,485. A patent number that starts with a D is a design patent. These are a little more complicated, but are essentially ornamental designs added to a tangible item. To qualify, the design must be original, new and can’t have any useful purpose that might qualify it for a utility patent instead. The design must be fixed to the item and can’t be removable. A design patent protects the appearance of an item, while a utility patent protects how the item works or how it’s used. This information re prefix D is courtesy of legalzoom.com. The drawings included with this Patent show the Model 600 volume control pedal. The DeArmond products to which this patent Number -but without the D prefix – was attached by means of a riveted circular metal disc are Models 600 and 800 Trem-Trol.
The drawings included with this Patent show the Model 600 volume control pedal.
Patent application filed November 14, 1946 by Harry DeArmond for Microphone Pickup and Volume Control, granted December 7, 1958, No. 2,455,567
The drawings included with this Patent show the Model 500 attachable mandolin pickup, the first version with the split black front panel.
Patent application filed November 18, 1946 by Harry DeArmond for Microphone Pickup and Volume Control, granted October 25, 1949, No. 2,485,263
The drawings included with this Patent show the Model RHC-B attachable pickup, but with 6 poles visible, whereas the version ultimately marketed had the pole-piece under the ‘B’ string is recessed.
Patent application filed September 27, 1947 by Harry DeArmond for Violin Microphone, granted October 25, 1949, No. 2,486,264
The drawings included with this Patent show the Models 700 and 900 attachable pickups
Patent application filed May 23, 1950 by R.E. Dearth for an Automatic Auxiliary Tuning Device, granted July 15, 1952, No. 2,603,119
The drawings included with this Patent show the bridge-mounted tuning adjuster unit marketed by DeArmond as the Stringtone Tuning Changer
Patent application filed May 10, 1950 by Harry DeArmond for Individual Magnet Adjustable Pickup, granted September 30, 1952, No. 2,612,072
The drawings included with this Patent show the Model 2000 pickup
Patent application filed September 30, 1950 by Harry DeArmond for Individual Magnet Adjustable Pickup, granted September 30, 1952, No. 2,612,541
The drawings included with this Patent show a guitar pickup with individually adjustable poles with bonded threads, similar to the Model 210
Patent application filed November 9, 1956 by Harry DeArmond et al for Electrical Pickups for Musical Instruments, granted September 30, 1952, No. 2,909,092
The drawings included with this Patent show a recessed version of the Model 210 pickup. The other person (et al) referred to is Leonard Meeker, an employee of the Company.
Patent application filed January 25, 1956 by Harry DeArmond for Musical Instrument, granted January 12, 1960, No. 2,920,522
The drawings included with this Patent show an electric piano with one string.
Patent application filed September 29, 1958 by Harry DeArmond et al, for Foot Pedal, granted June 6, 1961, No. 2,986,953
The drawings included with this Patent show the Model 610 combined Volume and Tone Control Pedal
Patent application filed May 15, 1962 by H. N. Rowe for Antenna Support Fixture with Quick Release Feature to Enable Lowering and Raising, granted September 28, 1965, No. 3,208,702
The drawings included with this Patent show a radio aerial. This would have been related to the company’s other electronic activities
Patent application filed July 11, 1962 by H. N. Rowe for Electronic Tremolo Unit, granted March 15, 1966, No. 3,240,859
The drawings included with this Patent show an electronic tremolo unit built into a Harmony Model H-66 Vibra-Jet guitar
Patent application filed October 15, 1968 by R. L. Abair (Ray Abair, an employee) for Magnetic Pick Unit for Musical Instruments, granted November 17, 1970, No. 3,541,219
The drawings included with this Patent show a pickup somewhat similar to the Coronado guitar pickup.
Patent application filed March 20, 1974 by Horace N. Rowe for Pickup Mount for Stringed Musical Instrument, granted March 11, 1975, No. 3,869,952
The drawings included with this Patent show the Model 220 attachable humbucking pickup for a flat-top roundhole guitar
Patent application filed February 8, 1975 by Horace N. Rowe for Foot Pedal for Control of Musical Instrument and the like, granted July 15, 1975, No. 3,894,445
The drawings included with this Patent show a foot-pedal which did not go into production
Patent application filed October 14, 1975 by Horace N. Rowe for Vibration Pickup Unit for Sensing Vibrations of Musical Instruments and the like, granted December 6, 1977, No. 4,061,934
The drawings included with this Patent show a Piezo attachable pickup head such as those used with pickups Models 3000, 3010 and 3200.
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