US2616675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air temperature control for carburetors
Assignee: Ritter Co Inc
•
Filing: 1947-06-26
•
Granted: 1952-11-04
•
Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Frank B Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
F; F02; F02M; F02M69/00; F02M2700/00; F02M2700/43; F02M2700/4397
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1502219A
Cited
US1856238A
Cited
US1968553A
Cited
US2139355A
Cited
US2325372A
Cited
US2108556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |