US2711968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of zinc sulfide white pigment
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-09-05
•
Granted: 1955-06-28
•
Expires: 1972-09-05
Abstract
No abstract record available.
Inventors
- 👤 George F Conery
- 👤 George W Ingle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:35
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/04; C09C1/06; C01; C01P; C01P2004/00; C01P2004/80; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US212016A
Cited
US2181651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |