Patent US3048565A successfully refreshed from Google Patents.
US3048565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester having basic dye sites
Assignee: EIDP Inc
•
Filing: 1959-12-21
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Granted: 1962-08-07
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Walter G Gall
- 👤 Robinson Ivan Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08G63/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A LINEAR CARBONYL-OXY COPOLYESTER CONSISTING ESSENTIALLY OF ALTERNATING REPEATING UNITS DEFINED BY THE FORMULAE:
Claim 2
Dependent Claim
14 words
A LINEAR CARBONYL-OXY COPOLYESTER CONSISTING ESSENTIALLY OF ALTERNATING REPEATING UNITS DEFINED BY THE FORMULAE:
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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |