Patent US3419861A successfully refreshed from Google Patents.
US3419861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Random frequency modulation correlation fuze system
Assignee: United States Department of the Navy
•
Filing: 1956-06-26
•
Granted: 1968-12-31
•
Expires: 1976-06-26
Abstract
No abstract record available.
Inventors
- 👤 Arnold E Resnik
- 👤 William F Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:53
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/04; F42C13/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A DOPPLER FUZE SYSTEM COMPRISING MEANS FOR TRANSMITTING A SIGNAL HAVING A CARRIER MODULATED BY RANDOM NOISE, MEANS FOR MIXING THE RETURN ECHO SIGNAL WITH AN UNDELAYED SIGNAL AND A DELAYED SIGNAL FROM THE TRANSMITTER, AND MEANS FOR DERIVING A TRIGGER SIGNAL SUITABLE FOR ACTUATING THE FUZE FROM THE OUTPUT OF SAID MIXING MEANS.
Claim 2
Dependent Claim
54 words
A DOPPLER FUZE SYSTEM COMPRISING MEANS FOR TRANSMITTING A SIGNAL HAVING A CARRIER MODULATED BY RANDOM NOISE, MEANS FOR MIXING THE RETURN ECHO SIGNAL WITH AN UNDELAYED SIGNAL AND A DELAYED SIGNAL FROM THE TRANSMITTER, AND MEANS FOR DERIVING A TRIGGER SIGNAL SUITABLE FOR ACTUATING THE FUZE FROM THE OUTPUT OF SAID MIXING MEANS.
References Cited (Backward Citations)
FR1052908A
Cited
GB724555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |