Patent US2436729A successfully refreshed from Google Patents.
US2436729A
Expired / Lapsed
US
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Construction of internal-combustion engines
Assignee: Individual
•
Filing: 1944-06-26
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Granted: 1948-02-24
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Expires: 1964-06-26
Abstract
No abstract record available.
Inventors
- 👤 Paxman Edward Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:05
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B2075/1804; F02B2075/1812; F02B2275/00; F02B2275/34; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S123/00; Y10S123/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007842A
Cited
US1332964A
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US1416348A
Cited
US1404550A
Cited
US1720625A
Cited
US1900587A
Cited
US2018612A
Cited
US2030995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |