Patent US2766974A successfully refreshed from Google Patents.
US2766974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-icing means for carburetors
Assignee: ACF Industries Inc
•
Filing: 1954-04-02
•
Granted: 1956-10-16
•
Expires: 1974-04-02
Abstract
No abstract record available.
Inventors
- 👤 Mcconnell Charles Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:44
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/434; F02M2700/4342; F02M2700/4345; Y; Y10; Y10S; Y10S261/00; Y10S261/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2085574A
Cited
US2145029A
Cited
US2407095A
Cited
US2533604A
Cited
US2548092A
Cited
US2655141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |