US2950949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing and printing shaped structures of hydrophobic organic high polymers containing ester groups
Assignee: Hoechst AG
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Filing: 1957-04-23
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Granted: 1960-08-30
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Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Schlack Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:10
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/649; D06P1/6495; D06P1/6498; D06P1/651; D06P1/65106; D06P1/65125; 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
55 words
A PROCESS FOR DYEING AND PRINTING SHAPED STRUCTURES OF HYDROPHOBIC LINEAR ORGANIC HIGH POLYMERS CONTAINING ESTER GROUPS WITH DISPERSION DYESTUFFS WHICH COMPRISES DYEING SAID STRUCTURES IN THE PRESENCE OF AN AROMATIC COMPOUND CONTAINING FROM ONE TO TWO AROMATIC RINGS AND SUBSTITUTED BY FROM ONE TO TWO LACTONE RINGS HAVING FROM 5 TO 6 RING MEMBERS.
Claim 2
Dependent Claim
55 words
A PROCESS FOR DYEING AND PRINTING SHAPED STRUCTURES OF HYDROPHOBIC LINEAR ORGANIC HIGH POLYMERS CONTAINING ESTER GROUPS WITH DISPERSION DYESTUFFS WHICH COMPRISES DYEING SAID STRUCTURES IN THE PRESENCE OF AN AROMATIC COMPOUND CONTAINING FROM ONE TO TWO AROMATIC RINGS AND SUBSTITUTED BY FROM ONE TO TWO LACTONE RINGS HAVING FROM 5 TO 6 RING MEMBERS.
References Cited (Backward Citations)
GB645032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |