US2921828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treating polyester films and fibers with primary amino compounds
Assignee: Eastman Kodak Co
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Filing: 1956-12-03
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Granted: 1960-01-19
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Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/04; C08J7/0427; C08J7/043; D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/332; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/645; D06P1/649; D06P1/6495; D06P1/6497; D06P1/673; D06P1/67316; D06P3/00; D06P3/34; D06P3/52; D06P3/521; C08J2367/00; C08J2367/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DYED POLYESTER COMPRISING AN ORIENTED THINLY FORMED HIGHLY POLYMERIC HIGH MELTING LINEAR POLYESTER ESSENTIALLY DERIVED FROM A HEXACARBOCYCLIC NUCLEAR DICARBOXYLIC COMPOUND AND A DIHYDROXY COMPOUND, WHICH FORMED POLYESTER IS DYED WITH AN ACID WOOL TEXTILE DYE. SAID DYED POLYESTER BEING CHARACTERIZED BY HAVING A SUB STANTIAL PROPORTION OF THE DYE MOLECULES CHEMICALLY BONDED TO THE SURFACE MOLECULES OF THE POLYESTER BY MEANS OF THE FORMATION OF TYING GROUPS DERIVED FROM A PRIMARY AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
86 words
A DYED POLYESTER COMPRISING AN ORIENTED THINLY FORMED HIGHLY POLYMERIC HIGH MELTING LINEAR POLYESTER ESSENTIALLY DERIVED FROM A HEXACARBOCYCLIC NUCLEAR DICARBOXYLIC COMPOUND AND A DIHYDROXY COMPOUND, WHICH FORMED POLYESTER IS DYED WITH AN ACID WOOL TEXTILE DYE. SAID DYED POLYESTER BEING CHARACTERIZED BY HAVING A SUB STANTIAL PROPORTION OF THE DYE MOLECULES CHEMICALLY BONDED TO THE SURFACE MOLECULES OF THE POLYESTER BY MEANS OF THE FORMATION OF TYING GROUPS DERIVED FROM A PRIMARY AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |