US2942319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of providing a protective lining on a hot top
Assignee: Oglebay Norton Co
•
Filing: 1957-11-22
•
Granted: 1960-06-28
•
Expires: 1977-11-22
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/108; Y; Y10; Y10S; Y10S425/00; Y10S425/005; Y10S425/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US805335A
Cited
US765349A
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US942651A
Cited
US1076681A
Cited
US1826945A
Cited
US1919070A
Cited
US2003092A
Cited
US2147217A
Cited
US2808620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |