Patent US3437503A successfully refreshed from Google Patents.
US3437503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of pigment compositions
Assignee: Novartis Corp
•
Filing: 1966-09-15
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Granted: 1969-04-08
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Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph Paul Massam
- 👤 David Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:42
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/006; C09B; C09B48/00; C09B67/00; C09B67/0001; C09B67/0025; C09B67/0027; C09B67/0032; C09B67/006; C09C3/04; C09C3/041; C09C3/08; C01; C01P; C01P2004/00; C01P2004/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3228780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |