US2643511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starter having combustion chamber supplied with fuel and combustion supporting medium for constant ratio by weight
Assignee: Avco Manufacturing Corp
•
Filing: 1949-10-07
•
Granted: 1953-06-30
•
Expires: 1969-10-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:44
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |