Patent US2597641A successfully refreshed from Google Patents.
US2597641A
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US
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Pressure-operated starting device
Assignee: General Electric Co
•
Filing: 1945-12-03
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Granted: 1952-05-20
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Expires: 1965-12-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Hull
- 👤 Arthur F Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:41
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE502757C
Cited
US838748A
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US958990A
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US2005913A
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US1812010A
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US1897948A
Cited
US2299465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |