US2765241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene films and coated fabrics with pressure sensitive adhesive onone side thereof and method of making
Assignee: EIDP Inc
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Filing: 1952-06-05
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Granted: 1956-10-02
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 Wayne Winston Joe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:20
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/38; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2883; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
POLYTETRAFLUOROETHYLENE SHEET WITH A PRESSURE SENSITIVE ADHESIVE COATING ON ONE SIDE, THE ADHESIVE COMPONENT OF SAID COATING CONSISTING ESSENTIALY OF A HOMOPOLYMER OF ISOBUTYLENE, SAID ADHESIVE HAVING A BOND STRENGTH TO POLYTETRAFLUOROETHYLENE CORRESPONDING TO AT LEAST 2.5 POUNDS PER STRIP ONE INCH WIDE.
Claim 2
Dependent Claim
43 words
POLYTETRAFLUOROETHYLENE SHEET WITH A PRESSURE SENSITIVE ADHESIVE COATING ON ONE SIDE, THE ADHESIVE COMPONENT OF SAID COATING CONSISTING ESSENTIALY OF A HOMOPOLYMER OF ISOBUTYLENE, SAID ADHESIVE HAVING A BOND STRENGTH TO POLYTETRAFLUOROETHYLENE CORRESPONDING TO AT LEAST 2.5 POUNDS PER STRIP ONE INCH WIDE.
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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |