US2911967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intake manifold
Assignee: Individual
•
Filing: 1956-09-20
•
Granted: 1959-11-10
•
Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Kiekhaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
F; F02; F02M; F02M1/00; F02B; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1832; F02B75/22; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4392
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1078919A
Cited
US1260388A
Cited
US1248417A
Cited
US1344793A
Cited
US1862723A
Cited
DE658535C
Cited
US2324592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |