US2770972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankpin-piston connecting means
Assignee: Individual
•
Filing: 1954-02-03
•
Granted: 1956-11-20
•
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
2026-10-29 23:54
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/22; F04; F04B; F04B49/00; F04B49/22; F04B49/225; F04B53/00; F04B53/006; F04B53/10; F04B53/109; F04B53/16; F04B53/162; F04B53/164; F04B9/00; F04B9/02; F04B9/04; F04B9/045; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7804; Y10T137/7809; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE296450C
Cited
US1360974A
Cited
US2343211A
Cited
US2555809A
Cited
US2532591A
Cited
US2587246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |