US3208874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface finishing of stainless steel
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1964-12-03
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Granted: 1965-09-28
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Jesse R Conner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
C; C23; C23C; C23C26/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A STAINLESS STEEL MEMBER HAVING A DECORATIVE SURFACE THEREOF DISPOSED TO BE VISIBLE IN USE, THE COMBINATION COMPRISING, A COATING DISPOSED IN ADHERING RELATION ON SAID SURFACE, SAID COATING COMPRISING A SUBSTANTIALLY INVISIBLE AND WATER INSOLUBLE BAKED-ON ALKALI METAL SILICATE LAYER HAVING A THICKNESS NOT EXCEEDING ABOUT 0.001 INCH.
Claim 2
Dependent Claim
50 words
IN A STAINLESS STEEL MEMBER HAVING A DECORATIVE SURFACE THEREOF DISPOSED TO BE VISIBLE IN USE, THE COMBINATION COMPRISING, A COATING DISPOSED IN ADHERING RELATION ON SAID SURFACE, SAID COATING COMPRISING A SUBSTANTIALLY INVISIBLE AND WATER INSOLUBLE BAKED-ON ALKALI METAL SILICATE LAYER HAVING A THICKNESS NOT EXCEEDING ABOUT 0.001 INCH.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |