US1992400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined internal combustion engine and air compressor, and cylinder head therefor
Assignee: GORDON SMITH AND CO Inc
•
Filing: 1934-04-13
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Granted: 1935-02-26
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Expires: 1954-04-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/38; F02B; F02B2275/00; F02B2275/34; Y; Y10; Y10S; Y10S123/00; Y10S123/07
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) | 1938-02-25 | 1938-08-27 | 1939-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-25 | 1942-08-27 | 1943-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-25 | 1946-08-27 | 1947-02-26 | $7700.00 | Window Closed / Lapsed |