US3013006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble azophthalocyanine dyestuffs and process for their production
Assignee: Bayer AG
•
Filing: 1959-09-04
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Granted: 1961-12-12
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Bienert Hildegard
- 👤 Prochaska Hildegard Dorothea
- 👤 Bienert Berthold Klaus
- 👤 Breig Kurt
- 👤 Groll Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:16
CPC Classifications
C; C09; C09B; C09B56/00; C09B56/14; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN AZO-PHTHALOCYANINE DYESTUFF CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
7 words
AN AZO-PHTHALOCYANINE DYESTUFF CORRESPONDING TO 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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |