Patent US2483469A successfully refreshed from Google Patents.
US2483469A
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US
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Basic lead phosphite pigments
Assignee: NL Industries Inc
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Filing: 1947-02-14
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Granted: 1949-10-04
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Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Kebrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:30
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/14; C01; C01B; C01B25/00; C01B25/16; C01P; C01P2004/00; C01P2004/80; C01P2006/00; C01P2006/19; 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) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |