US2766129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature ceramic composition
Assignee: Individual
•
Filing: 1953-09-21
•
Granted: 1956-10-09
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Chester A Marcowka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
C; C03; C03C; C03C10/00; C03C10/0036; C03C10/0045; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A BASE FRIT FOR A CERAMIC COMPOSITION TO BE APPLIED TO STAINLESS STELL TO PROTECT THE SAME AGAINST OXIDATION AT HIGH TEMPERATURES CONSISTING BY WEIGHT OF ABOUT 3.0% BEO, ABOUT 3.8% K2O, ABOUT 1.7% MGO, ABOUT 9.9% NA2O, ABOUT 6.1% AL2O3, ABOUT 3.0% TIO2 AND ABOUT 72.5% SIO2.
Claim 2
Dependent Claim
48 words
A BASE FRIT FOR A CERAMIC COMPOSITION TO BE APPLIED TO STAINLESS STELL TO PROTECT THE SAME AGAINST OXIDATION AT HIGH TEMPERATURES CONSISTING BY WEIGHT OF ABOUT 3.0% BEO, ABOUT 3.8% K2O, ABOUT 1.7% MGO, ABOUT 9.9% NA2O, ABOUT 6.1% AL2O3, ABOUT 3.0% TIO2 AND ABOUT 72.5% SIO2.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |