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US2608490A
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Low-temperature vitreous enamels
Assignee: Foote Mineral Co
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Filing: 1950-08-01
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Granted: 1952-08-26
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Expires: 1970-08-01
Abstract
No abstract record available.
Inventors
- 👤 John W Donahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:23
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/17; C03C8/00; C03C8/02; C03C8/08; C03C2207/00; C03C2207/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOSITION IN THE FORM OF A FRIT, AVAILABLE FOR USE AS A VITREOUS ENAMEL COMPOSITION COMPRISING:
Claim 2
Dependent Claim
17 words
A COMPOSITION IN THE FORM OF A FRIT, AVAILABLE FOR USE AS A VITREOUS ENAMEL COMPOSITION COMPRISING:
References Cited (Backward Citations)
AT30168B
Cited
US2436825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |