Patent US3301526A successfully refreshed from Google Patents.
US3301526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacked-wafer turbine vane or blade
Assignee: RTX Corp
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Filing: 1964-12-22
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Granted: 1967-01-31
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Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Chamberlain John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:52
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/182; F01D5/184; F01D5/187; F01D9/00; F01D9/02; F01D9/04; F01D9/042; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A BLADE-SHAPED MEMBER INCLUDING IN COMBINATION, A SERIES OF STACKED WAFERS OF AIRFOIL SECTION, MEANS FOR MAINTAINING SAID WAFERS TOGETHER, A PLURALITY OF SAID WAFERS HAVING A GROOVE PATTEN ON A FACE THEREOF, EACH WAFER HAVING OPENING MEANS THEREIN, THE OPENING MEANS OF ADJACENT WAFERS COOPERATING WITH EACH OTHER, SAID GROOVE PATTERN OF THE WAFERS HAVING THE INTERNAL ENDS
Claim 2
Dependent Claim
59 words
A BLADE-SHAPED MEMBER INCLUDING IN COMBINATION, A SERIES OF STACKED WAFERS OF AIRFOIL SECTION, MEANS FOR MAINTAINING SAID WAFERS TOGETHER, A PLURALITY OF SAID WAFERS HAVING A GROOVE PATTEN ON A FACE THEREOF, EACH WAFER HAVING OPENING MEANS THEREIN, THE OPENING MEANS OF ADJACENT WAFERS COOPERATING WITH EACH OTHER, SAID GROOVE PATTERN OF THE WAFERS HAVING THE INTERNAL ENDS
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |