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US2642364A
Expired / Lapsed
US
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Mat finish enamels for aluminum
Assignee: EIDP Inc
•
Filing: 1950-05-23
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Granted: 1953-06-16
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Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 William R Beatty
- 👤 Oliver A Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; C03C8/10; C03C8/12; C03C8/14; C03C2207/00; C03C2207/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A VITREOUS ENAMEL COMPOSITION SUITABLE FOR THE COATING OF ALUMINUM AND ALUMINUM-RICH ALLOYS TO PROVIDE A MAT ENAMEL FINISH THEREON WHICH COMPRISES AN ENAMEL FLUX AND 12 TO 50%, BASED ON THE WEIGHT OF SAID FLUX, OF A REFRACTORY MATERIAL ADDED AS A MILL-ADDITION AGENT, SAID FLUX COMPRISING:
Claim 2
Dependent Claim
48 words
A VITREOUS ENAMEL COMPOSITION SUITABLE FOR THE COATING OF ALUMINUM AND ALUMINUM-RICH ALLOYS TO PROVIDE A MAT ENAMEL FINISH THEREON WHICH COMPRISES AN ENAMEL FLUX AND 12 TO 50%, BASED ON THE WEIGHT OF SAID FLUX, OF A REFRACTORY MATERIAL ADDED AS A MILL-ADDITION AGENT, SAID FLUX COMPRISING:
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |