US3057825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric film having integral metallic luster and process for producing same
Assignee: EIDP Inc
•
Filing: 1959-07-29
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Granted: 1962-10-09
•
Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Tassler Milford Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A PROCESS FOR PREPARING FILM HAVING A CONTINUOUS INTEFRAL METALLIC LUSTER WHICH COMPRISES THE STEPS, IN SEQUENCE, OF ELONGATING A SUBSTANTIALLY AMORPHOUS, CRYSTALLIZABLE POLYMERIC LINEAR ESTER FILM UP TO FIVE TIMES ITS ORIGINAL DIMENSION IN AT LEAST THE DIRECTION TRANSVERSE TO ITS LONGEST DIMENSION AT A TEMPERATURE BETWEEN THE SECOND ORDER TRANSITION TEMPERATURE OF SAID POLYMERIC FILM AND ABOUT 50*C. ABOVE SAID TRANSITION TEMPERATURE; AND, THEREAFTER, OF STRETCHING SAID FILM ALONG ITS LONGEST DIMENSION AN AMOUNT EQUAL TO SAID FILM''S NATURAL DRAW RATIO AT A TEMPERATURE BELOW SAID SECOND ORDER TRANSITION TEMPERATURE OF SAID POLYMERIC FILM.
Claim 2
Dependent Claim
96 words
A PROCESS FOR PREPARING FILM HAVING A CONTINUOUS INTEFRAL METALLIC LUSTER WHICH COMPRISES THE STEPS, IN SEQUENCE, OF ELONGATING A SUBSTANTIALLY AMORPHOUS, CRYSTALLIZABLE POLYMERIC LINEAR ESTER FILM UP TO FIVE TIMES ITS ORIGINAL DIMENSION IN AT LEAST THE DIRECTION TRANSVERSE TO ITS LONGEST DIMENSION AT A TEMPERATURE BETWEEN THE SECOND ORDER TRANSITION TEMPERATURE OF SAID POLYMERIC FILM AND ABOUT 50*C. ABOVE SAID TRANSITION TEMPERATURE; AND, THEREAFTER, OF STRETCHING SAID FILM ALONG ITS LONGEST DIMENSION AN AMOUNT EQUAL TO SAID FILM''S NATURAL DRAW RATIO AT A TEMPERATURE BELOW SAID SECOND ORDER TRANSITION TEMPERATURE OF SAID POLYMERIC FILM.
Claim 3
Dependent Claim
58 words
A NON-FIBRILLATING POLYMERIC LINEAR TEREPHTHALIC ESTER FILM HAVING A CONTINOUS INTEGRAL METALLIC LUSTER, SAID FILM HAVING A DENSITIY OF 0.6-1.3 GRAMS/CC. AND A TENSILE STRENGTH OF AT LEAST 10,000 LBS./SQUARE INCH IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS AND WHEREIN THE CONTINUOUS INTEGRAL METALLIC LUSTER IS ATTRIBUTABLE TO THE STRUCTURE OF THE FILM AND NOT TO ANY ADDITIVES.
Claim 4
Dependent Claim
58 words
A NON-FIBRILLATING POLYMERIC LINEAR TEREPHTHALIC ESTER FILM HAVING A CONTINOUS INTEGRAL METALLIC LUSTER, SAID FILM HAVING A DENSITIY OF 0.6-1.3 GRAMS/CC. AND A TENSILE STRENGTH OF AT LEAST 10,000 LBS./SQUARE INCH IN BOTH THE LONGITUDINAL AND TRANSVERSE DIRECTIONS AND WHEREIN THE CONTINUOUS INTEGRAL METALLIC LUSTER IS ATTRIBUTABLE TO THE STRUCTURE OF THE FILM AND NOT TO ANY ADDITIVES.
References Cited (Backward Citations)
US2054454A
Cited
US2137301A
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US2238446A
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US2377231A
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US2352725A
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US2823421A
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US2893906A
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US2914436A
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US2948583A
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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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |