Patent US3547929A successfully refreshed from Google Patents.
US3547929A
Expired / Lapsed
US
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4,11-dichloroquinacridone pigments
Assignee: PMC Inc
•
Filing: 1967-08-07
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Granted: 1970-12-15
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Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Anthony P Wagener
- 👤 George J Meisters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:02
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0025; C09B67/0027; C09B48/00; C09B67/0001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3007930A
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US2982666A
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US3030370A
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US3160510A
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US3121718A
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US3148191A
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US3298847A
Cited
US3351481A
Cited
US3317539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |