US2653877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified ceramic enamel
Assignee: EIDP Inc
•
Filing: 1950-06-13
•
Granted: 1953-09-29
•
Expires: 1970-06-13
Abstract
No abstract record available.
Inventors
- 👤 Alden J Deyrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:46
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; C03C8/10; C03C8/12; C03C8/14; C03C8/16; C03C2207/00; C03C2207/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A VITREOUS ENAMEL COMPOSITION, SUITABLE FOR THE ENAMELING OF LIGHT METALS COMPRISING AS AN ENAMEL FRIT:
Claim 2
Dependent Claim
16 words
A VITREOUS ENAMEL COMPOSITION, SUITABLE FOR THE ENAMELING OF LIGHT METALS COMPRISING AS AN ENAMEL FRIT:
References Cited (Backward Citations)
US2467114A
Cited
GB564597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |