US2922898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic counter
Assignee: GTE Sylvania Inc
•
Filing: 1956-03-27
•
Granted: 1960-01-26
•
Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Heinz K Henisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2655607A
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US2595497A
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US2586080A
Cited
US2608674A
Cited
US2770740A
Cited
US2832898A
Cited
US2877358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |