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US3036876A
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Linear polyesters dyed with 3'-hydroxy-quinophthalone dyestuffs
Assignee: BASF SE
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Filing: 1959-07-31
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Granted: 1962-05-29
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Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 Schoellig Alfred
- 👤 Roessler Karl Georg
- 👤 Krallmann Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:40
CPC Classifications
C; C09; C09B; C09B25/00; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; D; D06; D06P; D06P1/00; D06P1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A STRUCTURE COMPRISING A LINEAR POLYESTER COLORED WITH A DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
13 words
A STRUCTURE COMPRISING A LINEAR POLYESTER COLORED WITH A DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
GB429176A
Cited
US2818410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |