US2917031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1956-07-24
•
Granted: 1959-12-15
•
Expires: 1976-07-24
Abstract
No abstract record available.
Inventors
- 👤 Nestorovic Miroslav Nikola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:20
CPC Classifications
F; F02; F02B; F02B41/00; F02B3/00; F02B37/00; F02B2720/00; F02B2720/22; F02B2720/228; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1082004A
Cited
GB150014A
Cited
US2010469A
Cited
US1922200A
Cited
US2123452A
Cited
US2076653A
Cited
US2125293A
Cited
US2454696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |