Patent US2819705A successfully refreshed from Google Patents.
US2819705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioned valve tappet
Assignee: Individual
•
Filing: 1954-03-02
•
Granted: 1958-01-14
•
Expires: 1974-03-02
Abstract
No abstract record available.
Inventors
- 👤 James G Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:24
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US976274A
Cited
US1085512A
Cited
US1696866A
Cited
GB345262A
Cited
US1785596A
Cited
US1913241A
Cited
US2044598A
Cited
US2206869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |