US2154555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starting apparatus
Assignee: Eclipse Aviation Corp
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Filing: 1935-08-01
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Granted: 1939-04-18
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Expires: 1955-08-01
Abstract
No abstract record available.
Inventors
- 👤 Baer Howard
- 👤 Martin J Finnegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:43
CPC Classifications
F; F02; F02N; F02N7/00; F02N7/02; F02N7/04; F15; F15B; F15B15/00; F15B15/02; F15B15/06
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) | 1942-04-17 | 1942-10-17 | 1943-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-17 | 1946-10-17 | 1947-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-17 | 1950-10-17 | 1951-04-18 | $7700.00 | Window Closed / Lapsed |