US3141744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear-resistant nickel-aluminum coatings
Assignee: Individual
•
Filing: 1961-06-19
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Granted: 1964-07-21
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Dwight E Couch
- 👤 Shapiro Harold
- 👤 Brenner Abner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:58
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/02; C23C28/023; C23C26/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A COMPOSITE METAL ARTICLE CONTAINING A HARD COATING WHICH INCREASES WEAR RESISTANCE OF SLIDING OR RECIPROCATING PARTS COMPRISING IN COMBINATION A BASE METAL, A LAYER CONSISTING OF UNALLOYED NICKEL BONDED TO AND COVERING SAID BASE METAL AND A SURFACE LAYER CONSISTING OF NICKEL ALUMINIDE BONDED TO AND COVERING SAID NICKEL LAYER, SAID SURFACE BEING FREE OF CONTAMINATION FROM THE BASE METAL AND FREE OF UNALLOYED ALUMINUM.
Claim 2
Dependent Claim
66 words
A COMPOSITE METAL ARTICLE CONTAINING A HARD COATING WHICH INCREASES WEAR RESISTANCE OF SLIDING OR RECIPROCATING PARTS COMPRISING IN COMBINATION A BASE METAL, A LAYER CONSISTING OF UNALLOYED NICKEL BONDED TO AND COVERING SAID BASE METAL AND A SURFACE LAYER CONSISTING OF NICKEL ALUMINIDE BONDED TO AND COVERING SAID NICKEL LAYER, SAID SURFACE BEING FREE OF CONTAMINATION FROM THE BASE METAL AND FREE OF UNALLOYED ALUMINUM.
References Cited (Backward Citations)
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Cited
US2490548A
Cited
US2682101A
Cited
US2752667A
Cited
US2709154A
Cited
US2837818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |