US2534261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line pulse modulator
Assignee: Individual
•
Filing: 1944-07-06
•
Granted: 1950-12-19
•
Expires: 1964-07-06
Abstract
No abstract record available.
Inventors
- 👤 John E Gorham
- 👤 Walter T Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:57
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/78; H03K3/02; H03K3/53; H03K3/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB489021A
Cited
US2266401A
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US2288544A
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US2400457A
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US2405070A
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US2416718A
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US2432227A
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US2462918A
Cited
US2391894A
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US2422086A
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US2420309A
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US2411898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |