US2586587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene film as an adhesive casting surface
Assignee: Wingfoot Corp
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Filing: 1946-10-08
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Granted: 1952-02-19
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Expires: 1966-10-08
Abstract
No abstract record available.
Inventors
- 👤 Merle E Wendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:45
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/9145; C09J7/30; C09J7/35; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE METHOD OF PRODUCING A FILM OF HEATACTIVATED ADHESIVE WHICH COMPRISES CASTING THE HEAT-ACTIVATED ADHESIVE ON A SURFACE OF POLYETHYLENE, SETTING TO CASE ADHESIVE TO A SELF-SUPPORTING FILM AND REMOVING THE FILM FROM THE CASTING SURFACE.
Claim 2
Independent Claim
36 words
THE METHOD OF PRODUCING A FILM OF HEATACTIVATED ADHESIVE WHICH COMPRISES CASTING THE HEAT-ACTIVATED ADHESIVE ON A SURFACE OF POLYETHYLENE, SETTING TO CASE ADHESIVE TO A SELF-SUPPORTING FILM AND REMOVING THE FILM FROM THE CASTING SURFACE.
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) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |