US2861022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic film-metal-laminated structure and process
Assignee: EIDP Inc
•
Filing: 1956-01-19
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Granted: 1958-11-18
•
Expires: 1976-01-19
Abstract
No abstract record available.
Inventors
- 👤 Lundsager Christian Bent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR LAMINATING CRYSTALLINE, ORIENTED, HEATSET POLYETHYLENE TEREPHTHALATE FILM TO METAL WHICH COMPRISES, (1) HEATING THE SURFACE OF THE METAL TO WHICH A CRYSTALLINE, ORIENTED, HEAT-SET POLYETHYLENE TEREPHTHALATE FILM IS TO BE BONDED TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID FILM; (2) BRINGING THE SURFACE OF SAID FILM INTO CONTACT WITH THE HEATED METAL SURFACE MAINTAINED AT SAID TEMPERTURE WHEREBY TO EFFECT SUPERFICIAL MELTING OF SAID FILM SURFACE; AND (3) IMMEDIATELY THERAFTER QUENCHING THE FILM AND METAL IN CONTACT THEREWITH TO RAPIDLY COOL THE SUPERFICIALLY MELTED SURFACE OF SAID FILM TO THE SOLID AMORPHOUS STATE WHEREBY TO PRODUCE A TIGHTLY BONDED LAMINATED STRUCTURE OF SAID FILM AND METAL.
Claim 2
Dependent Claim
111 words
A PROCESS FOR LAMINATING CRYSTALLINE, ORIENTED, HEATSET POLYETHYLENE TEREPHTHALATE FILM TO METAL WHICH COMPRISES, (1) HEATING THE SURFACE OF THE METAL TO WHICH A CRYSTALLINE, ORIENTED, HEAT-SET POLYETHYLENE TEREPHTHALATE FILM IS TO BE BONDED TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID FILM; (2) BRINGING THE SURFACE OF SAID FILM INTO CONTACT WITH THE HEATED METAL SURFACE MAINTAINED AT SAID TEMPERTURE WHEREBY TO EFFECT SUPERFICIAL MELTING OF SAID FILM SURFACE; AND (3) IMMEDIATELY THERAFTER QUENCHING THE FILM AND METAL IN CONTACT THEREWITH TO RAPIDLY COOL THE SUPERFICIALLY MELTED SURFACE OF SAID FILM TO THE SOLID AMORPHOUS STATE WHEREBY TO PRODUCE A TIGHTLY BONDED LAMINATED STRUCTURE OF SAID FILM AND METAL.
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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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |