US3088173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing oriented polymeric linear terephthalate film with a deglossed writeable surface
Assignee: EIDP Inc
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Filing: 1961-06-02
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Granted: 1963-05-07
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Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jones John Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:51
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE PROCESS COMPRISING: STRETCHING SUBSTANTIALLY AMORPHOUS POLYMERIC LINEAR TERPHTHALATE FILM AFTER ATTRAINING A TEMPERATURE WITHIN THE RANGE OF 110* TO 114*C. WITHIN A PERIOD OF TIME OF AT THE MOST ABOUT 3 MINUTES IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS TO AN EXTENT OF AT LEAST 1.25 TIMES ITS ORIGINAL DIMENSIONS, COOLING SAID FILM BELOW ITS SECOND ORDER TRANSITION TEMPERATURE, A STRETCHING SAID FILM A SECOND TIME AFTER ATTAINING A TEMPERATURE WITHIN THE RANGE OF 110* TO 114*C. WITHIN A PERIOD OF TIME OF TIME AT THE MOST ABOUT 3 MINUTES IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS TO AN EXTENT THE AT LEAST 1.25 TIMES ITS DIMENSIONS AFTER THE FIRST STRETCH, THE TOTAL EXTENT OF THE STRETCH BEING 3 TO 10 TIMES THAT OF THE ORIGINAL DIMENSIONS OF SAID FILM.
Claim 2
Dependent Claim
131 words
THE PROCESS COMPRISING: STRETCHING SUBSTANTIALLY AMORPHOUS POLYMERIC LINEAR TERPHTHALATE FILM AFTER ATTRAINING A TEMPERATURE WITHIN THE RANGE OF 110* TO 114*C. WITHIN A PERIOD OF TIME OF AT THE MOST ABOUT 3 MINUTES IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS TO AN EXTENT OF AT LEAST 1.25 TIMES ITS ORIGINAL DIMENSIONS, COOLING SAID FILM BELOW ITS SECOND ORDER TRANSITION TEMPERATURE, A STRETCHING SAID FILM A SECOND TIME AFTER ATTAINING A TEMPERATURE WITHIN THE RANGE OF 110* TO 114*C. WITHIN A PERIOD OF TIME OF TIME AT THE MOST ABOUT 3 MINUTES IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS TO AN EXTENT THE AT LEAST 1.25 TIMES ITS DIMENSIONS AFTER THE FIRST STRETCH, THE TOTAL EXTENT OF THE STRETCH BEING 3 TO 10 TIMES THAT OF THE ORIGINAL DIMENSIONS OF SAID FILM.
References Cited (Backward Citations)
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |