Patent US2895212A successfully refreshed from Google Patents.
US2895212A
Expired / Lapsed
US
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Combustion turbines
Assignee: CA Parsons and Co Ltd
•
Filing: 1953-02-24
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Granted: 1959-07-21
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Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Hawthorne Edward Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:50
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/04; F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/147; F01D5/30; F01D5/3061; F05; F05D; F05D2230/00; F05D2230/20; F05D2230/23; F05D2230/232; F05D2230/237; F05D2230/238; F05D2230/30; F05D2230/31; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1530249A
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US1947347A
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US1869478A
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US2143462A
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US2287848A
Cited
CH238186A
Cited
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US2526194A
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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) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |