US2391166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead salicylate compositions and process of preparing same
Assignee: NL Industries Inc
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Filing: 1944-08-15
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Granted: 1945-12-18
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Expires: 1964-08-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Kebrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:52
CPC Classifications
C; C09; C09B; C09B63/00; C07; C07C; C07C51/00; C07C51/41; C07C51/412; C07C65/00; C07C65/01; C07C65/03; C07C65/05; C07C65/10; C09C; C09C1/00; C09C1/14; C01; C01P; C01P2004/00; C01P2004/80; C01P2006/00; C01P2006/60; C01P2006/80
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) | 1948-12-17 | 1949-06-18 | 1949-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-17 | 1953-06-18 | 1953-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-17 | 1957-06-18 | 1957-12-18 | $7700.00 | Window Closed / Lapsed |