US2380096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of lead oxide
Assignee: EAGLE PICHER LEAD Co
•
Filing: 1940-07-27
•
Granted: 1945-07-10
•
Expires: 1960-07-27
Abstract
No abstract record available.
Inventors
- 👤 Doan Donald Jay
- 👤 Vaughn Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:43
CPC Classifications
C; C01; C01G; C01G21/00; C01G21/02; C01G21/06; C01P; C01P2004/00; C01P2004/51; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/10
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) | 1948-07-09 | 1949-01-08 | 1949-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-07-09 | 1953-01-08 | 1953-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-07-09 | 1957-01-08 | 1957-07-10 | $7700.00 | Window Closed / Lapsed |