Patent US3250904A successfully refreshed from Google Patents.
US3250904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase-shift computer and control system
Assignee: Individual
•
Filing: 1961-09-27
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Granted: 1966-05-10
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Vasu George
- 👤 Kirby W Hiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:38
CPC Classifications
G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PHASE-SHIFT COMPUTER FOR A SYSTEM HAVING INPUT AND OUTPUT CONNECTIONS, SAID COMPUTER COMPRISING IN COMBINATION MEANS FOR SUPPLYING SELECTED FREQUENCY COMPONENTS TO SAID INPUT CONNECTION, A LOW PASS FILTER TO PASS SAID SELECTED FREQUENCY COMPONENTS, MEANS FOR MULTIPLYING INPUT AND OUTPUT SIGNALS OF THE SYSTEM AND SUPPLYING THEM TO THE FILTER, AND AN ARC COS FUNCTION GENERATOR CONNECTED TO THE FILTER OUTPUT.
Claim 2
Dependent Claim
63 words
A PHASE-SHIFT COMPUTER FOR A SYSTEM HAVING INPUT AND OUTPUT CONNECTIONS, SAID COMPUTER COMPRISING IN COMBINATION MEANS FOR SUPPLYING SELECTED FREQUENCY COMPONENTS TO SAID INPUT CONNECTION, A LOW PASS FILTER TO PASS SAID SELECTED FREQUENCY COMPONENTS, MEANS FOR MULTIPLYING INPUT AND OUTPUT SIGNALS OF THE SYSTEM AND SUPPLYING THEM TO THE FILTER, AND AN ARC COS FUNCTION GENERATOR CONNECTED TO THE FILTER OUTPUT.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |