Patent US2919999A successfully refreshed from Google Patents.
US2783176A
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Method of laminating plastic materials
Assignee: Libbey Owens Ford Glass Co
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Filing: 1954-08-24
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Granted: 1957-02-26
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 James H Boicey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/30; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/1055; B32B17/10761; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10844; B32B17/10853; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METHOD OF LAMINATING THERMOPLASTIC SHEET MATERIAL COMPRISING FORMING A SANDWICH HAVING TWO OUTER SHEETS OF ARCYLIC PLASTIC AND AT LEAST ONE SHEET OF POLYVINYL BUTYRAL PLASTIC, ENCLOSING THE SANDWICH IN A PLASTIC BAG, EVACUATING THE AIR FROM THE BAG, PUTTING THE EVACU-
Claim 2
Independent Claim
43 words
A METHOD OF LAMINATING THERMOPLASTIC SHEET MATERIAL COMPRISING FORMING A SANDWICH HAVING TWO OUTER SHEETS OF ARCYLIC PLASTIC AND AT LEAST ONE SHEET OF POLYVINYL BUTYRAL PLASTIC, ENCLOSING THE SANDWICH IN A PLASTIC BAG, EVACUATING THE AIR FROM THE BAG, PUTTING THE EVACU-
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) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |