US3405020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the manufacture of plastic laminates and cellular materials
Assignee: Sealed Air Corp
•
Filing: 1963-12-26
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Granted: 1968-10-08
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Marc A Chavannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:48
CPC Classifications
B; B32; B32B; B32B27/00; B05; B05C; B05C9/00; B05C9/08; B05C9/14; B29; B29C; B29C51/00; B29C51/14; B29C51/18; B29C51/20; B29C51/22; B29C51/225; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/1412; B29C65/1429; B29C65/1432; B29C65/1454; B29C65/1464; B29C65/1467; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/52; B29C65/526; B29C66/00; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/40; B29C66/41; B29C66/43; B29C66/438; B29C66/45; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/70; B29C66/71; B29C66/72; B29C66/723; B29C66/7234; B29C66/72341; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/83415; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91411; B29C66/919; B29C66/9192; B29C66/91921; B29C66/91931; B29C66/91935; B31; B31F; B31F1/00; B31F1/07; B32B3/00; B32B3/26; B32B3/28; B29C65/18; B29C66/91421; B31F2201/00; B31F2201/07; B31F2201/0758; B31F2201/0761; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
THE METHOD OF MAKING A THREE-PLY LAMINATE CONSISTING OF THE STEPS OF COATING EACH OF TWO SHEETS OF PLASTIC MATERIAL WITH A PLASTIC CONTAINING A COPOLYMER OF POLYVINYLIDENE CHLORIDE AND ACRYLONITRILE, HEATING SAID PLASTIC COATING ON EACH OF SAID SHEETS, COOLING SAID COATINGS RAPIDLY SUBSTANTIALLY TO AMBIENT TEMPERATURE TO TRANSFORM THEM TO AN AMORPHOUS STATE AND THEN BRINGING THE COOLED COATING ON EACH OF SAID SHEETS INTO PRESSURE CONTACT ONE WITH THE OTHER TO PRODUCT A COMPOSITE THREE-PLY LAMINATE WITH THE COATINGS, FORMING A SINGLE LAYER INTERMEDIATE SAID PLASTIC SHEETS, THE PLASTIC MATERIAL FORMING SAID SHEETS BEING SELECT-
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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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |