Patent US3129069A successfully refreshed from Google Patents.
US3129069A
Expired / Lapsed
US
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Oxidation-resistant turbine blades
Assignee: Motors Liquidation Co
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Filing: 1959-12-17
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Granted: 1964-04-14
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Dean K Hanink
- 👤 Erwin R Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:46
CPC Classifications
C; C22; C22C; C22C19/00; C23; C23C; C23C10/00; C23C10/28; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/936; Y10S428/937; Y10S428/939; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN OXIDATION-RESISTANT TURBINE BLADE FORMED OF A METAL SELECTED FROM THE CLASS CONSISTING OF NICKEL BASE ALLOYS AND COBALT BASE ALLOYS, THE WORKING SURFACES OF SAID BLADE HAVING A THIN LAYER OF AN ALLOY OF ALUMINUM WITH THE BASE METAL OF SAID BLADE, SAID LAYER HAVING A THICKNESS OF APPROXIMATELY 0.0005 INCH TO 0.0025 INCH.
Claim 2
Dependent Claim
55 words
AN OXIDATION-RESISTANT TURBINE BLADE FORMED OF A METAL SELECTED FROM THE CLASS CONSISTING OF NICKEL BASE ALLOYS AND COBALT BASE ALLOYS, THE WORKING SURFACES OF SAID BLADE HAVING A THIN LAYER OF AN ALLOY OF ALUMINUM WITH THE BASE METAL OF SAID BLADE, SAID LAYER HAVING A THICKNESS OF APPROXIMATELY 0.0005 INCH TO 0.0025 INCH.
References Cited (Backward Citations)
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |