US2957745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing and printing of synthetic high polymeric polyesters
Assignee: BASF SE
•
Filing: 1958-09-25
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Granted: 1960-10-25
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Expires: 1978-09-25
Abstract
No abstract record available.
Inventors
- 👤 Braun Willy
- 👤 Hartwig Ernst
- 👤 Eisele Julius
- 👤 Federkiel Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:14
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65168; D06P1/65193; D06P1/46; D06P1/62; D06P1/621; D06P1/622; D06P1/625; D06P1/642; D06P1/667; D06P3/00; D06P3/34; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A PROCESS FOR DYEING AND PRINTING A SYNTHETIC POLYMERIC LINEAR POLYESTER FORMED AS THE POLYCONDENSATION PRODUCT OF DIBASIC AROMATIC ACIDS AND DIHYDROX ALCOHOLS WITH DISPERSION DYESTUFFS WHICH COMPRISES APPLYING SAID DISPERSION DYESTUFFS WHICH COMPRISES APPLYING SAID MEMBER OF THE CLASS CONSISTING OF DIPHENYLSULFONE AND ITS CHLORO, BROMO, AND HYDROXY SUBSTITUTION PRODUCTS.
Claim 2
Dependent Claim
51 words
A PROCESS FOR DYEING AND PRINTING A SYNTHETIC POLYMERIC LINEAR POLYESTER FORMED AS THE POLYCONDENSATION PRODUCT OF DIBASIC AROMATIC ACIDS AND DIHYDROX ALCOHOLS WITH DISPERSION DYESTUFFS WHICH COMPRISES APPLYING SAID DISPERSION DYESTUFFS WHICH COMPRISES APPLYING SAID MEMBER OF THE CLASS CONSISTING OF DIPHENYLSULFONE AND ITS CHLORO, BROMO, AND HYDROXY SUBSTITUTION PRODUCTS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |