US2880671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Initiator primer
Assignee: GTE Sylvania Inc
•
Filing: 1954-10-05
•
Granted: 1959-04-07
•
Expires: 1974-10-05
Abstract
No abstract record available.
Inventors
- 👤 Henry J Lutz
- 👤 Robert F Doran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:45
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; F42B3/12; F42B3/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2226988A
Cited
US2279451A
Cited
US2230080A
Cited
US2269195A
Cited
US2481696A
Cited
US2596325A
Cited
CH284085A
Cited
US2762302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |