US3279939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nichrome-chromia coating
Assignee: Union Carbide Corp
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Filing: 1963-02-26
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Granted: 1966-10-18
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Donald M Yenni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:36
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C22; C22C; C22C29/00; C22C29/12; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/937; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12493; Y10T428/1266; Y10T428/12667; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12937; Y10T428/30; Y10T428/31504; Y10T428/31551; Y10T428/31634; Y10T428/31678
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
METALLIC COATING HAVING HIGH WEAR REISTANCE AT HIGH TEMPERATURES FOR A SUBSTRATE SURFACE CONSITING OF 2-15% BY WEIGHT OF A MIXTURE OF 80% NICKEL AND 20% CHROMIUM AND THE REMAINDER CHROMIA.
Claim 2
Dependent Claim
31 words
METALLIC COATING HAVING HIGH WEAR REISTANCE AT HIGH TEMPERATURES FOR A SUBSTRATE SURFACE CONSITING OF 2-15% BY WEIGHT OF A MIXTURE OF 80% NICKEL AND 20% CHROMIUM AND THE REMAINDER CHROMIA.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |