US1586980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaner for automobile carburetors
Assignee: Individual
•
Filing: 1923-05-21
•
Granted: 1926-06-01
•
Expires: 1943-05-21
Abstract
No abstract record available.
Inventors
- 👤 Pont Eleuthere Paul Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/04; F02M35/06; Y; Y10; Y10S; Y10S494/00; Y10S494/90; Y10S55/00; Y10S55/28
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) | 1929-05-31 | 1929-11-30 | 1930-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-31 | 1933-11-30 | 1934-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-31 | 1937-11-30 | 1938-06-01 | $7700.00 | Window Closed / Lapsed |