US2427045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poppet valve tool
Assignee: Individual
•
Filing: 1944-05-09
•
Granted: 1947-09-09
•
Expires: 1964-05-09
Abstract
No abstract record available.
Inventors
- 👤 Nathan B Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:54
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/10; B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/26; F01L2303/00; F01L2303/01; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/53578
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |