US2879547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making fused film laminates
Assignee: Kendall Co
•
Filing: 1956-10-16
•
Granted: 1959-03-31
•
Expires: 1976-10-16
Abstract
No abstract record available.
Inventors
- 👤 James F Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:39
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C43/00; B29C43/22; B29C43/30; B29C43/305; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE METHOD FOR THE MANUFACTURE OF A FLEXIBLE SELFSUPPORTING LAMINAR SHEET COMPRISING DEPOSITING A MOLTEN BULK OF ORGANIC THERMOPLASTIC MATERIAL AT A NIP BETWEEN A MOVING CARRYING SURFACE AND A FIRST CONVERGING SURFACE TO FORM A LAYER OF SAID MATERIAL AS IT EMERGES FROM SAID NIP ADHERENT TO THE CARRYING SURFACE, CARRYING SAID LAYER WHILE IT IS STILL ADHERENT TO SAID CARRYING SURFACE INTO CONTACT WITH A MOLTEN BULK OF A SECOND CHEMICALLY DIFFERENT ORGANIC THERMOPLASTIC MATERIAL, DEPOSITED DIRECTLY BETWEEN THE ADHERENT LAYER AND A SECOND CONVERGING SURFACE FORMING A SECOND NIP WITH SAID MOVING CARRYING SURFACE, ONE OF SAID THERMOPLASTIC MATERIALS BEING A PRESSURE-SENSITIVE ADHESIVE, AND CARRYING SAID TWO MATERIALS THROUGH SAID SECOND NIP WHILE MAINTAINING EACH MATERIAL AT THE INTERFACE BETWEEN THEM AT A TEMPERATURE ABOVE ITS MELTING POINT TO FORM ADHERENT TO SAID CARRYING SURFACE A LAMINATED SHEET OF MATERIALS AND THEREAFTER STRIPPING SAID LAMINATED SHEET AS A CONTINUOUS SHEET FROM SAID CARRYING SURFACE.
Claim 2
Independent Claim
157 words
THE METHOD FOR THE MANUFACTURE OF A FLEXIBLE SELFSUPPORTING LAMINAR SHEET COMPRISING DEPOSITING A MOLTEN BULK OF ORGANIC THERMOPLASTIC MATERIAL AT A NIP BETWEEN A MOVING CARRYING SURFACE AND A FIRST CONVERGING SURFACE TO FORM A LAYER OF SAID MATERIAL AS IT EMERGES FROM SAID NIP ADHERENT TO THE CARRYING SURFACE, CARRYING SAID LAYER WHILE IT IS STILL ADHERENT TO SAID CARRYING SURFACE INTO CONTACT WITH A MOLTEN BULK OF A SECOND CHEMICALLY DIFFERENT ORGANIC THERMOPLASTIC MATERIAL, DEPOSITED DIRECTLY BETWEEN THE ADHERENT LAYER AND A SECOND CONVERGING SURFACE FORMING A SECOND NIP WITH SAID MOVING CARRYING SURFACE, ONE OF SAID THERMOPLASTIC MATERIALS BEING A PRESSURE-SENSITIVE ADHESIVE, AND CARRYING SAID TWO MATERIALS THROUGH SAID SECOND NIP WHILE MAINTAINING EACH MATERIAL AT THE INTERFACE BETWEEN THEM AT A TEMPERATURE ABOVE ITS MELTING POINT TO FORM ADHERENT TO SAID CARRYING SURFACE A LAMINATED SHEET OF MATERIALS AND THEREAFTER STRIPPING SAID LAMINATED SHEET AS A CONTINUOUS SHEET FROM SAID CARRYING 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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |