US2719225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse responsive circuit
Assignee: General Dynamics Corp
•
Filing: 1950-04-20
•
Granted: 1955-09-27
•
Expires: 1970-04-20
Abstract
No abstract record available.
Inventors
- 👤 Frank A Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:23
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451632A
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US2420200A
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US2438907A
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US2609533A
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US2488567A
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US2532338A
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US2466705A
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US2568213A
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US2591247A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |