Patent US3198653A successfully refreshed from Google Patents.
US3198653A
Expired / Lapsed
US
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Coated columbium article
Assignee: Individual
•
Filing: 1962-08-02
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Granted: 1965-08-03
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 William B Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:04
CPC Classifications
C; C23; C23C; C23C24/00; C23C4/00; C23C4/04; C23C4/10; C23C4/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COATED METAL ARTICLE COMPRISING A BASE OF COLUMBIUM METAL, A FIRST LAYER OF FLAME SPRAYED ALUMINA BONDED TO SAID BASE AND A SECOND LAYER OF A FIRED, SLIP SPRAYED METALLIC OXIDE BONDED TO SAID FIRST LAYER IN WHICH SAID METALLIC XIDE IS SELECTED FROM THE GROUP CONSISTING OF MGO, BAO, AND SIO2.
Claim 2
Dependent Claim
53 words
A COATED METAL ARTICLE COMPRISING A BASE OF COLUMBIUM METAL, A FIRST LAYER OF FLAME SPRAYED ALUMINA BONDED TO SAID BASE AND A SECOND LAYER OF A FIRED, SLIP SPRAYED METALLIC OXIDE BONDED TO SAID FIRST LAYER IN WHICH SAID METALLIC XIDE IS SELECTED FROM THE GROUP CONSISTING OF MGO, BAO, AND SIO2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |