US3454461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene-polyvinyl fluoride film laminated structure and process of making same
Assignee: EIDP Inc
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Filing: 1966-04-15
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Granted: 1969-07-08
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Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 Robert B Paxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/266; Y10T428/269; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS WHICH COMPRISES, IN COMBINATION, THE STEPS OF SUBJECTING THE SURFACE OF POLYETHYLENE FILM TO THE ACTION OF A PULSATING ELECTROSTATIC DISCHARGE, APPLYING THE RESULTING TREATED FILM TO THE POLYVINYL FLUORIDE SURFACE OF A SURFACE-RECEPTIVE POLYVINYL FLUORIDE FILM/METAL STRIP LAMINATE, THE TREATED SURFACE OF THE POLYETHYLENE SURFACE BEING IN CONTACT WITH THE SURFACE-RECEPTIVE SURFACE OF THE POLYVINYL FLUORIDE FILM LAMINA OF SAID STRIP LAMINATE, AND SUBJECTING THE RESULTING COMPOSITE TO A PRESSURE WITHIN THE RANGE OF 10 TO 40 POUNDS PER INCH WIDTH AND A TEMPERATURE WITHIN THE RANGE OF 150* TO 215*C.
Claim 2
Dependent Claim
94 words
A PROCESS WHICH COMPRISES, IN COMBINATION, THE STEPS OF SUBJECTING THE SURFACE OF POLYETHYLENE FILM TO THE ACTION OF A PULSATING ELECTROSTATIC DISCHARGE, APPLYING THE RESULTING TREATED FILM TO THE POLYVINYL FLUORIDE SURFACE OF A SURFACE-RECEPTIVE POLYVINYL FLUORIDE FILM/METAL STRIP LAMINATE, THE TREATED SURFACE OF THE POLYETHYLENE SURFACE BEING IN CONTACT WITH THE SURFACE-RECEPTIVE SURFACE OF THE POLYVINYL FLUORIDE FILM LAMINA OF SAID STRIP LAMINATE, AND SUBJECTING THE RESULTING COMPOSITE TO A PRESSURE WITHIN THE RANGE OF 10 TO 40 POUNDS PER INCH WIDTH AND A TEMPERATURE WITHIN THE RANGE OF 150* TO 215*C.
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |