US2772985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of molybdenum with binary coatings containing aluminum
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1951-08-08
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Granted: 1956-12-04
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Expires: 1971-08-08
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:17
CPC Classifications
C; C23; C23C; C23C8/00; C23C16/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/12771; Y10T428/12806; Y10T428/12826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE METHOD OF PROVIDING A CORROSION-RESISTANT SURFACE ON A MOLYBDENUM ARTICLE WHICH COMPRISES DEPOSITING A LAYER OF ALUMINUM ON SAID ARTICLE, AND THEREAFTER REACTING THE RESULTING COATED ARTICLE WITH AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, SILICON, TITANIUM, AND ZIRCONIUM.
Claim 2
Independent Claim
42 words
THE METHOD OF PROVIDING A CORROSION-RESISTANT SURFACE ON A MOLYBDENUM ARTICLE WHICH COMPRISES DEPOSITING A LAYER OF ALUMINUM ON SAID ARTICLE, AND THEREAFTER REACTING THE RESULTING COATED ARTICLE WITH AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, SILICON, TITANIUM, AND ZIRCONIUM.
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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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |