US3418985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocker arm for internal combustion engines
Assignee: Individual
•
Filing: 1967-09-01
•
Granted: 1968-12-31
•
Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Hirose Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:58
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/181; F01L2303/00; F01L2303/01; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2345822A
Cited
US2844132A
Cited
US2917033A
Cited
US2905160A
Cited
US3150648A
Cited
US3164143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |