US2425058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of titanium dioxide and calcium-starch-metaborate as pigments
Assignee: Vanderbilt Chemicals LLC
•
Filing: 1945-09-05
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Granted: 1947-08-05
•
Expires: 1965-09-05
Abstract
No abstract record available.
Inventors
- 👤 William L Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:07
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/0084; C01; C01P; C01P2004/00; C01P2004/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936152A
Cited
US2140394A
Cited
GB486316A
Cited
US2185859A
Cited
US2287161A
Cited
US2351683A
Cited
US2388526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |