US2661937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentric carburetor
Assignee: Individual
•
Filing: 1949-07-01
•
Granted: 1953-12-08
•
Expires: 1969-07-01
Abstract
No abstract record available.
Inventors
- 👤 Milton J Kittler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:06
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4304; F02M2700/4311; Y; Y10; Y10S; Y10S55/00; Y10S55/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141570A
Cited
GB191219333A
Cited
US1973362A
Cited
US2210991A
Cited
FR880597A
Cited
US2313258A
Cited
US2457570A
Cited
US2499554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |