US2493783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical silent tappet
Assignee: Individual
•
Filing: 1945-07-17
•
Granted: 1950-01-10
•
Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 Clifton L Stancliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:49
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/16; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1442698A
Cited
US1790999A
Cited
GB190501199A
Cited
US1631563A
Cited
US1663345A
Cited
US1915586A
Cited
US2066976A
Cited
US2234718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |