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[D8248ZAJ], Letter from Richard Nott Dyer to Thomas Alva Edison, April 28th, 1882

Title: [D8248ZAJ], Letter from Richard Nott Dyer to Thomas Alva Edison, April 28th, 1882
Editor's Notes: As requested, report on 3 Hopkinson patents. 2481 (1879): US application would interfere with Fields later pat. Fields could try to prove earlier date of conception but Hopkinson would be bound by his dates and at great disadvantage. No. 4650 (1879): discusses various figures; not encouraging. No 2989 (1881): believe can get US pats on these devices.
Author: Dyer, Richard Nott
Recipient: Edison, Thomas Alva
Mentioned: Hopkinson, John; Field, Stephen Dudley
Date: 1882-04-28
Type: Letter
Subject: Patents
Folder ID: D8248-F
Microfilm ID: 63:451
Document ID: D8248ZAJ
URL: https://edisondigital.rutgers.edu/document/D8248ZAJ
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 63

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