US3207995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency deviation detector
Assignee: International Standard Electric Corp
•
Filing: 1962-04-20
•
Granted: 1965-09-21
•
Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 Beer Marcus John
- 👤 Schemel Raymond Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:49
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/02; H03C3/09; G; G01; G01R; G01R29/00; G01R29/06; H02; H02P; H02P9/00; H02P9/42; H03D; H03D3/00; H03D3/02; H03D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A FREQUENCY DEVIATION DETECTOR COMPRISING: MEANS FOR PREDETERMINEDLY AMPLITUDE MODULATING A FREQUENCY MODULATED INPUT SIGNAL; A FREQUENCY DISCRIMINATOR COUPLED TO SAID MODULATING MEANS PROVIDING A COMPOSITE SIGNAL CONTAINING A WANTED COMPONENT WHICH IS PERIODICALLY FREQUENCY IN-
Claim 2
Dependent Claim
36 words
A FREQUENCY DEVIATION DETECTOR COMPRISING: MEANS FOR PREDETERMINEDLY AMPLITUDE MODULATING A FREQUENCY MODULATED INPUT SIGNAL; A FREQUENCY DISCRIMINATOR COUPLED TO SAID MODULATING MEANS PROVIDING A COMPOSITE SIGNAL CONTAINING A WANTED COMPONENT WHICH IS PERIODICALLY FREQUENCY IN-
References Cited (Backward Citations)
US2584608A
Cited
US2896074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |