Patent US2709148A successfully refreshed from Google Patents.
US2709148A
Expired / Lapsed
US
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Production of laminates
Assignee: BASF SE
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Filing: 1951-09-27
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Granted: 1955-05-24
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Expires: 1971-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jacque Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:51
CPC Classifications
B; B32; B32B; B32B27/00; G; G11; G11B; G11B5/00; G11B5/62; G11B5/73; G11B5/739; G11B5/73923; Y; Y10; Y10S; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS OF PRODUCING LAMINATES FROM SHAPES PREPARED FROM VINYL CHLORIDE POLYMERS AND HAVING TWO PREFERRED DIMENSIONS WHICH COMPRISES LIGHTLY STICKING THE SAID SHAPES TOGETHER, AND THEN WELDING THEM TOGETHER BY HEATING WITHOUT USING PRESSURE TO TEMPERATURES AT WHICH THE SHAPES BECOME STICKY AT THEIR SURFACES AND HAVE RELATIVELY LITTLE MECHANICAL STRENGTH FOR SUCH TIME INTERVAL AS WILL NOT RESULT IN POLYMER DECOMPOSITION.
Claim 2
Dependent Claim
63 words
A PROCESS OF PRODUCING LAMINATES FROM SHAPES PREPARED FROM VINYL CHLORIDE POLYMERS AND HAVING TWO PREFERRED DIMENSIONS WHICH COMPRISES LIGHTLY STICKING THE SAID SHAPES TOGETHER, AND THEN WELDING THEM TOGETHER BY HEATING WITHOUT USING PRESSURE TO TEMPERATURES AT WHICH THE SHAPES BECOME STICKY AT THEIR SURFACES AND HAVE RELATIVELY LITTLE MECHANICAL STRENGTH FOR SUCH TIME INTERVAL AS WILL NOT RESULT IN POLYMER DECOMPOSITION.
References Cited (Backward Citations)
US2562641A
Cited
US2569954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |