US2796769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crank-shaft and the corresponding crank-case
Assignee: Individual
•
Filing: 1954-02-03
•
Granted: 1957-06-25
•
Expires: 1974-02-03
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:24
CPC Classifications
F; F16; F16C; F16C9/00; F16C9/02; F02; F02F; F02F7/00; F02F7/0043; F02F7/0053; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2251/00; F05C2251/04; F05C2251/042; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/21; Y10T74/2173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1807725A
Cited
US1456082A
Cited
US1847418A
Cited
US2039469A
Cited
US2398364A
Cited
US2426940A
Cited
US2648573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |