Patent US2647104A successfully refreshed from Google Patents.
US2647104A
Expired / Lapsed
US
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Linear polyester composition
Assignee: EIDP Inc
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Filing: 1951-07-30
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Granted: 1953-07-28
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Expires: 1971-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph C Shivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:00
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/521; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS FOR PREPARING MODIFIED POLYETHYLENE TEREPHTHALATE CONTAINING DYE RECEPTIVE BASIC NITROGEN WHICH COMPRISES TREATING AN ETHYLENE TEREPHTHALATE POLYMER AT TEMPERATURES IN THE RANGE OF 100* TO 275* C. WITH AN AMINOALCOHOL REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
36 words
A PROCESS FOR PREPARING MODIFIED POLYETHYLENE TEREPHTHALATE CONTAINING DYE RECEPTIVE BASIC NITROGEN WHICH COMPRISES TREATING AN ETHYLENE TEREPHTHALATE POLYMER AT TEMPERATURES IN THE RANGE OF 100* TO 275* C. WITH AN AMINOALCOHOL REPRESENTED BY THE FORMULA
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) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |