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Patent US3352845A successfully refreshed from Google Patents.
US3352845A
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Method for producing azoic pigment
Assignee: GAF Chemicals Corp
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Filing: 1964-10-01
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Granted: 1967-11-14
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 William H Armento
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:40
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12; C09; C09B; C09B29/00; C09B29/10; C09B29/18; C09B29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
IN A PROCESS FOR PRODUCING AZOIC DYES ANDN PIGMENTS OF THE FORMULA:
Claim 2
Dependent Claim
12 words
IN A PROCESS FOR PRODUCING AZOIC DYES ANDN PIGMENTS OF THE FORMULA:
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |