As can be imagined, there are quite a number of patents to be found within this collection. In addition to Armstrong’s patents, a variety of patents issued to other individuals can be found as well.
Armstrong was issued five patents on December 26, 1933. The first is patent number 1,941,066 titled: "Radio Signaling System," the second is patent 1,941,067:"Radio Broadcasting and Receiving," the third is patent 1,941,068: "Radiosignaling," the fourth is patent 1,941,069: "Radiosignaling" (specifically dealing with noise suppression), and the last is patent 1,941,447: "Radio Telephone Signaling."
I came upon a patent application that appears to have been "dropped". You will see in the documents I have posted here that Armstrong filed for a patent for improvements in "Radio Signaling," through his attorneys Moses & Nolte, on March 26, 1931.
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Armstrong’s attorney requested an amendment from Armstrong based on an "office action" from the U.S. Patent Office, where they cite patent number 1,797,317. Patent number 1,797,317, titled "Binaural Phase-Discrimination Radio System," was granted on March 24, 1931 to Smart Brand and Pierre Mertz, assignors to American Telephone and Telegraph Company.
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Armstrong’s written disclosure (first four pages) for this patent application, along with accompanying figures, can be seen below.
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Instead of making the amendment as requested by his attorney, Armstrong decided to let the application drop. From reading Armstrong’s patents listed earlier, I can not tell if this dropped application was rewritten into alternate Armstrong patent. Perhaps someone can shed some light on this?
Fascinating manuscripts! Great to see such old original pieces – mistakes, corrections, and all!