US1555489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: Individual
•
Filing: 1921-08-17
•
Granted: 1925-09-29
•
Expires: 1941-08-17
Abstract
No abstract record available.
Inventors
- 👤 Albert H Spencer
- 👤 Spencer Elmer Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/22; F02M15/00; F02M15/02; F02M15/04; F02M15/045; F02M9/00; F02M9/10; F02M9/103; Y; Y10; Y10S; Y10S261/00; Y10S261/58
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) | 1928-09-28 | 1929-03-30 | 1929-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-28 | 1933-03-30 | 1933-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-28 | 1937-03-30 | 1937-09-29 | $7700.00 | Window Closed / Lapsed |