US3311095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating piston engines
Assignee: Individual
•
Filing: 1965-09-20
•
Granted: 1967-03-28
•
Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 John L Hittell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:56
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B75/222; F01; F01B; F01B1/00; F01B1/06; F01B1/062; F01B9/00; F01B9/04; F01B9/06; F01B2009/061; F01B2009/063; F02B2075/1804; F02B2075/1816
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |