Patent US1649775A successfully refreshed from Google Patents.
US1649775A
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Engine
Assignee: EDGAR B DAVIS
•
Filing: 1924-08-14
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Granted: 1927-11-15
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Expires: 1944-08-14
Abstract
No abstract record available.
Inventors
- 👤 Forrest F Cameron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:08
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/002; F02F1/02; F02F1/04; F02F1/045; F02F7/00; F02F7/0002; F02F7/0007; F02B; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; F02B2275/00; F02B2275/34; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021
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) | 1930-11-14 | 1931-05-16 | 1931-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-14 | 1935-05-16 | 1935-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-14 | 1939-05-16 | 1939-11-15 | $7700.00 | Window Closed / Lapsed |