Patent US2750504A successfully refreshed from Google Patents.
US2750504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal generator
Assignee: C G S LABORASTORIES Inc
•
Filing: 1951-06-21
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Granted: 1956-06-12
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Expires: 1971-06-21
Abstract
No abstract record available.
Inventors
- 👤 Carl G Sontheimer
- 👤 Stanley I Sachs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:33
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2462866A
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US2523122A
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US2561727A
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US2434115A
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US2476725A
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US2458650A
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US2589246A
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US2626355A
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US2484562A
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US2525452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |