US1490233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel-charge mixing and priming device
Assignee: Individual
•
Filing: 1923-03-14
•
Granted: 1924-04-15
•
Expires: 1943-03-14
Abstract
No abstract record available.
Inventors
- 👤 Walter H Ruther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:33
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/12; F02M31/135; F02M1/00; F02M29/00; F02M29/04; F02M29/06; F02M29/08; 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) | 1927-04-15 | 1927-10-15 | 1928-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-15 | 1931-10-15 | 1932-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-15 | 1935-10-15 | 1936-04-15 | $7700.00 | Window Closed / Lapsed |