US1823017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: CHARLES F HOPEWELL
•
Filing: 1928-07-17
•
Granted: 1931-09-15
•
Expires: 1948-07-17
Abstract
No abstract record available.
Inventors
- 👤 Merl R Wolfard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:39
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/08; F02M3/12; F02M1/00; F02M1/08; F02M1/10; F02M19/00; F02M19/08; F02M19/081; F02M31/00; F02M31/02; F02M31/04; F02M31/06; F02M31/07; F02M5/00; F02M5/12; F02M7/00; F02M7/12; F02M7/14; F02M7/16; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1934-09-14 | 1935-03-16 | 1935-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-14 | 1939-03-16 | 1939-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-14 | 1943-03-16 | 1943-09-15 | $7700.00 | Window Closed / Lapsed |