US2769438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder head retainer
Assignee: Studebaker Packard Corp
•
Filing: 1953-12-02
•
Granted: 1956-11-06
•
Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 Julius E Witzky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:35
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/10; F02F1/16; F02B; F02B2275/00; F02B2275/18; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1678946A
Cited
US2155180A
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US2282502A
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US2349170A
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US2424449A
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US2563949A
Cited
US2595592A
Cited
US2654357A
Cited
US2650868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |