Patent US3327195A successfully refreshed from Google Patents.
US2830357A
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US
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Blades for gas turbines
Assignee: Bristol Aero Engines Ltd
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Filing: 1956-05-22
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Granted: 1958-04-15
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Expires: 1976-05-22
Abstract
No abstract record available.
Inventors
- 👤 Tunstall Cuthbert Marklew
- 👤 Wright Thomas Greaves
- 👤 Pollinger William Samuel
- 👤 Blackwell Basil Davenport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; B; B23; B23P; B23P15/00; B23P15/02; F01D5/147; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339; Y10T29/49341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |