US2933682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency measuring apparatus
Assignee: General Dynamics Corp
•
Filing: 1956-03-05
•
Granted: 1960-04-19
•
Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Moulton
- 👤 Joseph A Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
G; G01; G01R; G01R23/00; G01R25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2474253A
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US2452960A
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US2543058A
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US2595263A
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US2731566A
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US2615127A
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US2767312A
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US2677104A
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US2762949A
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US2858425A
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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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |