Patent US2284152A successfully refreshed from Google Patents.
US2284152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Old Carco LLC
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Filing: 1938-05-02
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Granted: 1942-05-26
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Expires: 1958-05-02
Abstract
No abstract record available.
Inventors
- 👤 Louis T Knocke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:01
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/16; F05; F05C; F05C2251/00; F05C2251/04; F05C2251/042
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) | 1945-05-25 | 1945-11-24 | 1946-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-25 | 1949-11-24 | 1950-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-25 | 1953-11-24 | 1954-05-26 | $7700.00 | Window Closed / Lapsed |