US2686131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enameling process
Assignee: Vitreous Steel Products Co
•
Filing: 1950-10-12
•
Granted: 1954-08-10
•
Expires: 1970-10-12
Abstract
No abstract record available.
Inventors
- 👤 Combs Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
C; C03; C03C; C03C4/00; C03C2204/00; C03C2204/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A COATING COMPOSITION FOR USE IN PRODUCING COLORED FUSED ENAMEL COATING COMPRISING FROM 4 TO 1 PARTS OF A FUSIBLE FRIT SELECTED FROM THE CLASS OF TITANIUM, ZIRCONIUM, AND ANTIMONY FRITS MIXED WITH FROM 1 TO 4 PARTS OF CLEAR FUSIBLE ANTIMONY FRIT AS THE ESSENTIAL FUSIBLE CONSTITUENTS AND A RELATIVELY SMALL AMOUNT OF A VITEOUS ENAMEL COLOR COMPOUND.
Claim 2
Dependent Claim
59 words
A COATING COMPOSITION FOR USE IN PRODUCING COLORED FUSED ENAMEL COATING COMPRISING FROM 4 TO 1 PARTS OF A FUSIBLE FRIT SELECTED FROM THE CLASS OF TITANIUM, ZIRCONIUM, AND ANTIMONY FRITS MIXED WITH FROM 1 TO 4 PARTS OF CLEAR FUSIBLE ANTIMONY FRIT AS THE ESSENTIAL FUSIBLE CONSTITUENTS AND A RELATIVELY SMALL AMOUNT OF A VITEOUS ENAMEL COLOR COMPOUND.
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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |