Patent US3264136A successfully refreshed from Google Patents.
US3264136A
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US
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Polyethylene terephthalate film with finely divided polymethyl methacrylate coating
Assignee: Imperial Chemical Industries Ltd
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Filing: 1962-11-05
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Granted: 1966-08-02
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Derek G Hedge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:59
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/044; C08J7/046; C08J7/048; C08J7/052; B05D2201/00; B05D2401/00; B05D2401/20; C08J2433/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
POLYETHYLENE TEREPHTHALATE FILM HAVING COATED UPON ITS SURFACE FINELY DIVIDED PARTICLES OF POLYMETHYL METHACRYLATE IN WHICH THE BULK OF SAID PARTICLES HAVE A SIZE IN THE RANGE OF 0.1 TO 2 MICRONS, AND COATED FILM HAVING A STATIC COEFFICIENT OF FRACTION OF FILM SLIDING ON FILM OF NO GREATER THAN 0.6 AND A HAZE VALUE MEASURED ACCORDING TO A.S.T.M. TESTS DIOO3-52 OF LESS THAN 2%.
Claim 2
Dependent Claim
65 words
POLYETHYLENE TEREPHTHALATE FILM HAVING COATED UPON ITS SURFACE FINELY DIVIDED PARTICLES OF POLYMETHYL METHACRYLATE IN WHICH THE BULK OF SAID PARTICLES HAVE A SIZE IN THE RANGE OF 0.1 TO 2 MICRONS, AND COATED FILM HAVING A STATIC COEFFICIENT OF FRACTION OF FILM SLIDING ON FILM OF NO GREATER THAN 0.6 AND A HAZE VALUE MEASURED ACCORDING TO A.S.T.M. TESTS DIOO3-52 OF LESS THAN 2%.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |