US3490852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine rotor bucket cooling and sealing arrangement
Assignee: General Electric Co
•
Filing: 1967-12-21
•
Granted: 1970-01-20
•
Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Carlstrom
- 👤 William M Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:20
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F01D5/081; F01D5/30; F01D5/3007; F01D5/3015; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2985426A
Cited
US3010696A
Cited
US2988325A
Cited
US2974926A
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US3266770A
Cited
US3356340A
Cited
US3343806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |