US2358652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bottoms of high temperature basic furnaces
Assignee: Individual
•
Filing: 1941-06-25
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Granted: 1944-09-19
•
Expires: 1961-06-25
Abstract
No abstract record available.
Inventors
- 👤 Isaac A Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:26
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/16; F27B; F27B3/00; F27B3/10; F27B3/12; F27B3/14; F27B2003/125; F27D1/0003; F27D1/0006; F27D2001/1605
Claims Analysis
Total Claims: 0
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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) | 1947-09-19 | 1948-03-20 | 1948-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-19 | 1952-03-20 | 1952-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-19 | 1956-03-20 | 1956-09-19 | $7700.00 | Window Closed / Lapsed |