US3262764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coatings for columbium base alloys
Assignee: RTX Corp
•
Filing: 1963-08-19
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Granted: 1966-07-26
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Elihu F Bradley
- 👤 Edwin S Bartlett
- 👤 Horace R Ogden
- 👤 Robert I Jaffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; C; C22; C22C; C22C19/00; C22C19/07; C23; C23C; C23C10/00; C23C10/02; C23C10/28; C23C10/34; C23C10/36; C23C26/00; C23C30/00; C25; C25D; C25D5/00; C25D5/48; C25D5/50; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/936; Y10S428/937; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/1275; Y10T428/12771; Y10T428/12806; Y10T428/12819; Y10T428/12861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AN ARTICLE OF MANUFACTURE HAVING GOOD STRESS-RUPTURE STRENGTH AT HIGH TEMPERATURES, HIGH TEMPERATURE OXIDATION RESISTANCE, AND RESISTANCE TO CYCLIC FATIGUE FAILURE, WHICH COMPRISES A CORE OF METAL SELECTED FROM THE GROUP CONSISTING OF COLUMBIUM AND COLUMBIUM BASE ALLOYS, AND A SURFACE LAYER, ADHERENTLY BONDED TO THE CORE CONSISTING ESSENTIALLY OF COAL.
Claim 2
Dependent Claim
51 words
AN ARTICLE OF MANUFACTURE HAVING GOOD STRESS-RUPTURE STRENGTH AT HIGH TEMPERATURES, HIGH TEMPERATURE OXIDATION RESISTANCE, AND RESISTANCE TO CYCLIC FATIGUE FAILURE, WHICH COMPRISES A CORE OF METAL SELECTED FROM THE GROUP CONSISTING OF COLUMBIUM AND COLUMBIUM BASE ALLOYS, AND A SURFACE LAYER, ADHERENTLY BONDED TO THE CORE CONSISTING ESSENTIALLY OF COAL.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |