US2538569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile engine carburetor choke valve
Assignee: Individual
•
Filing: 1948-11-06
•
Granted: 1951-01-16
•
Expires: 1968-11-06
Abstract
No abstract record available.
Inventors
- 👤 Milton J Kittler
- 👤 Arthur G Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:37
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/02; F02M19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1411426A
Cited
US1711748A
Cited
US1629210A
Cited
US1721618A
Cited
US1872559A
Cited
US1951262A
Cited
US2251604A
Cited
US2323442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |