US1331420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: ALUMINUM CASTINGS Co
•
Filing: 1917-02-23
•
Granted: 1920-02-17
•
Expires: 1937-02-23
Abstract
No abstract record available.
Inventors
- 👤 James E Diamond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:54
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/10; F02F1/102; F02B; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; F02B2275/00; F02B2275/20; F02F1/24; F02F2001/244; F02F2001/245; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10S; Y10S123/00; Y10S123/06
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-02-16 | 1923-08-18 | 1924-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-02-16 | 1927-08-18 | 1928-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-02-16 | 1931-08-18 | 1932-02-17 | $7700.00 | Window Closed / Lapsed |