US2764641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensated amplifying system
Assignee: General Electric Co
•
Filing: 1952-10-15
•
Granted: 1956-09-25
•
Expires: 1972-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert A Muschamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:01
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/42; H03F1/48; H03F1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951251A
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US1936597A
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US2095261A
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US2239362A
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US2423671A
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US2354718A
Cited
US2523468A
Cited
US2511122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |