US3450550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic blue to green pigments
Assignee: EIDP Inc
•
Filing: 1966-02-25
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Granted: 1969-06-17
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Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 Howard Richard Linton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:06
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/006; C09C1/00; C09C1/40; C09C1/405; C01; C01P; C01P2004/00; C01P2004/20; C01P2004/60; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/12; C01P2006/32; C01P2006/37; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |