US3245004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency signal generator with feedback linear control circuit
Assignee: HP Inc
•
Filing: 1964-01-03
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Granted: 1966-04-05
•
Expires: 1984-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert A Andersen
- 👤 Jack G S Lum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:43
CPC Classifications
H; H03; H03K; H03K7/00; H03K7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
SIGNAL APPARATUS COMPRISING: AN INTEGRATOR HAVING AN INPUT AND AN OUTPUT, MEANS TO APPLY A SIGNAL TO THE INPUT OF SAID INTEGRATOR, CIRCUIT MEANS CONNECTED TO THE OUTPUT OF SAID INTEGRATOR FOR PRODUCING A PULSE IN RESPONSE TO THE SIGNAL AT SAID OUTPUT ATTAINING A PREDETERMINED VALUE, MEANS CONNECTING THE OUTPUT OF SAID CIRCUIT MEANS AND THE INPUT OF SAID INTEGRATOR TO REDUCE THE SIGNAL AT THE OUTPUT OF SAID INTEGRATOR BY FIXED DECREMENTS, MEANS INCLUDING A CONTROL CIRCUIT CONNECTED TO SAID CIR-
Claim 2
Dependent Claim
83 words
SIGNAL APPARATUS COMPRISING: AN INTEGRATOR HAVING AN INPUT AND AN OUTPUT, MEANS TO APPLY A SIGNAL TO THE INPUT OF SAID INTEGRATOR, CIRCUIT MEANS CONNECTED TO THE OUTPUT OF SAID INTEGRATOR FOR PRODUCING A PULSE IN RESPONSE TO THE SIGNAL AT SAID OUTPUT ATTAINING A PREDETERMINED VALUE, MEANS CONNECTING THE OUTPUT OF SAID CIRCUIT MEANS AND THE INPUT OF SAID INTEGRATOR TO REDUCE THE SIGNAL AT THE OUTPUT OF SAID INTEGRATOR BY FIXED DECREMENTS, MEANS INCLUDING A CONTROL CIRCUIT CONNECTED TO SAID CIR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |