Patent US2611233A successfully refreshed from Google Patents.
US2611233A
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US
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Starting device for free piston internal-combustion operated compressors or gas generators
Assignee: English Electric Co Ltd
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Filing: 1947-07-18
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Granted: 1952-09-23
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Expires: 1967-07-18
Abstract
No abstract record available.
Inventors
- 👤 Welsh Robert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:05
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/0435; F02B; F02B71/00; F02B71/02; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2083680A
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US1527032A
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US1871265A
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US2168828A
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US2434778A
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US2434877A
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US2472934A
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US2473204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |