US2863429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder-head for internal combustion engine
Assignee: Individual
•
Filing: 1955-07-29
•
Granted: 1958-12-09
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Bouteleux Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:05
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/38; F01; F01L; F01L1/00; F01L1/28; F01L1/285; F02B; F02B2275/00; F02B2275/20; F02F2001/244; F02F2001/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US878364A
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US1191150A
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US1019488A
Cited
US1059210A
Cited
US1232108A
Cited
US1493419A
Cited
US1950911A
Cited
US2107389A
Cited
US2127692A
Cited
US2303324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |