US2773131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic amplifier
Assignee: Honeywell Inc
•
Filing: 1953-04-06
•
Granted: 1956-12-04
•
Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 Sakamoto Masao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:22
CPC Classifications
H; H03; H03F; H03F9/00; H03F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2037659A
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US2124600A
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US2229952A
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US2388070A
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US2399586A
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US2453624A
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US2458937A
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US2503039A
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US2598221A
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US2679621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |