Patent US2637274A successfully refreshed from Google Patents.
US2637274A
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Power-gas generating device
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1947-11-04
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Granted: 1953-05-05
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Expires: 1967-11-04
Abstract
No abstract record available.
Inventors
- 👤 Taylor James
- 👤 Hutchison Alexander Cantlay
- 👤 Fagelston Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:01
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B31/00; C06B31/28; C06B45/00; C06B45/12; C06D; C06D5/00; C06D5/06; C10; C10L; C10L5/00; F; F02; F02K; F02K9/00; F02K9/42; F02K9/425; F42; F42B; F42B3/00; F42B3/04; F42B33/00; F42B33/02; F42B33/0207; Y; Y10; Y10S; Y10S102/00; Y10S102/704
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US826293A
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GB190726430A
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US958990A
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FR502560A
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US1471990A
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GB453210A
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US2434477A
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FR919287A
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |