US3412388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency monitor
Assignee: United States Department of the Army
•
Filing: 1965-07-08
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Granted: 1968-11-19
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Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 George R Barton
- 👤 Jr George W Pate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:18
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SYSTEM FOR MONITORING THE DEVIATION FROM A CENTER FREQUENCY COMPRISING: (A) A FRIST CHANNEL FOR PASSING AN INPUT SIGNAL; (B) A SECOND CHANNEL IN PARALLEL WITH THE FIRST CHANNEL INCLUDING MEANS FOR BLOCKING ON-CENTER FREQUENCY INPUT ENERGY AND PASSING OFF-CENTER FREQUENCY INPUT ENERGY; (C) MEANS FOR STORING SAID FIRST CHANNEL OUTPUT SIGNALS AT A STORAGE LEVEL; (D) MEANS FOR INHIBITING SAID FIRST CHANNEL OUTPUT WITH THE OFF-CENTER FREQUENCY ENERGY FROM SAID SECOND CHANNEL; (E) A THRESHOLD CIRCUIT PRODUCING A THRESHOLD LEVEL AND CONNECTED TO SAID MEANS FOR STORING FIRST CHANNEL OUTPUT SIGNALS; (F) AN ALARM CONNECTED TO THE OUTPUT OF SAID THRESHOLD CIRCUIT; AND (G) MEANS FOR ACTIVATING SAID ALARM WHEN SAID STORAGE LEVEL FALLS BELOW THE THRESHOLD LEVEL.
Claim 2
Independent Claim
120 words
A SYSTEM FOR MONITORING THE DEVIATION FROM A CENTER FREQUENCY COMPRISING: (A) A FRIST CHANNEL FOR PASSING AN INPUT SIGNAL; (B) A SECOND CHANNEL IN PARALLEL WITH THE FIRST CHANNEL INCLUDING MEANS FOR BLOCKING ON-CENTER FREQUENCY INPUT ENERGY AND PASSING OFF-CENTER FREQUENCY INPUT ENERGY; (C) MEANS FOR STORING SAID FIRST CHANNEL OUTPUT SIGNALS AT A STORAGE LEVEL; (D) MEANS FOR INHIBITING SAID FIRST CHANNEL OUTPUT WITH THE OFF-CENTER FREQUENCY ENERGY FROM SAID SECOND CHANNEL; (E) A THRESHOLD CIRCUIT PRODUCING A THRESHOLD LEVEL AND CONNECTED TO SAID MEANS FOR STORING FIRST CHANNEL OUTPUT SIGNALS; (F) AN ALARM CONNECTED TO THE OUTPUT OF SAID THRESHOLD CIRCUIT; AND (G) MEANS FOR ACTIVATING SAID ALARM WHEN SAID STORAGE LEVEL FALLS BELOW THE THRESHOLD LEVEL.
References Cited (Backward Citations)
US3074018A
Cited
US3106679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |