US2953692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier devices
Assignee: Unisys Corp
•
Filing: 1955-05-13
•
Granted: 1960-09-20
•
Expires: 1975-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jr John Presper Eckert
- 👤 William F Steagall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2424833A
Cited
US2486776A
Cited
US2597796A
Cited
US2535303A
Cited
US2601096A
Cited
US2760160A
Cited
US2712065A
Cited
US2756329A
Cited
US2670445A
Cited
US2718613A
Cited
US2795696A
Cited
US2759052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |