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US2769100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methqd
Assignee: —
•
Filing: —
•
Granted: 1956-10-30
•
Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:07
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/04; F02N15/06; F02N11/00; F02N11/04; F02N11/08; F02N11/0814; F02N15/022; F02N15/043; F02N15/046; F02N15/067; F02N5/00; F02N5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056417A
Cited
US1207821A
Cited
US1217244A
Cited
US1139210A
Cited
US1419607A
Cited
US1511491A
Cited
US2319469A
Cited
US2302315A
Cited
US2349867A
Cited
US2668914A
Cited
US2689310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |