US1614301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound-lever valve-spring lifter
Assignee: BRIDGEPORT HARDWARE MANUFACTURING Corp
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Filing: 1926-09-24
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Granted: 1927-01-11
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Expires: 1946-09-24
Abstract
No abstract record available.
Inventors
- 👤 Willis F Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/5357; Y10T29/53574
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-01-10 | 1930-07-12 | 1931-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-01-10 | 1934-07-12 | 1935-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-01-10 | 1938-07-12 | 1939-01-11 | $7700.00 | Window Closed / Lapsed |