Patent US1484640A successfully refreshed from Google Patents.
US1484640A
Expired / Lapsed
US
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Valve-adjusting means
Assignee: Individual
•
Filing: 1921-12-15
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Granted: 1924-02-26
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Expires: 1941-12-15
Abstract
No abstract record available.
Inventors
- 👤 Robert M Getchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:00
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F01L1/20; F02; F02B; F02B2275/00; F02B2275/34; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/247
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) | 1927-02-25 | 1927-08-27 | 1928-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-25 | 1931-08-27 | 1932-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-25 | 1935-08-27 | 1936-02-26 | $7700.00 | Window Closed / Lapsed |