US2567353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated safety glass
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1947-06-13
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Granted: 1951-09-11
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Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:02
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10293; B32B17/10366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A LAMINATED UNIT, COMPRISING TWO SHEETS OF GLASS AND AN INTERPOSED SHEET OF THERMOPLASTIC MATERIAL BONDED THERETO TO PROVIDE A UNITARY STRUCTURE, SAID INTERPOSED SHEET COMPRISING A .095 INCH THICK LAYER OF POLYVINYL BUTYRAL RESIN PLASTICIZED WITH APPROXIMATELY 21 PARTS PLASTICIZER PER 100 PARTS RESIN BY WEIGHT AND TWO FACING LAYERS OF .015 INCH THICK POLYVINYL BUTYRAL RESIN PLASTICIZED WITH 37 1/2 PARTS OF PLASTICIZER PER 100 PARTS RESIN BY WEIGHT, SAID .095 INCH THICK LAYER BEING OF SUFFICIENT AREA TO HAVE PORTIONS THEREOF EXTENDING OUTWARDLY FROM BETWEEN THE TRANSPARENT PANELS TO PROVIDE A FLEXIBLE ATTACHING FLANGE FOR THE UNIT.
Claim 2
Dependent Claim
100 words
A LAMINATED UNIT, COMPRISING TWO SHEETS OF GLASS AND AN INTERPOSED SHEET OF THERMOPLASTIC MATERIAL BONDED THERETO TO PROVIDE A UNITARY STRUCTURE, SAID INTERPOSED SHEET COMPRISING A .095 INCH THICK LAYER OF POLYVINYL BUTYRAL RESIN PLASTICIZED WITH APPROXIMATELY 21 PARTS PLASTICIZER PER 100 PARTS RESIN BY WEIGHT AND TWO FACING LAYERS OF .015 INCH THICK POLYVINYL BUTYRAL RESIN PLASTICIZED WITH 37 1/2 PARTS OF PLASTICIZER PER 100 PARTS RESIN BY WEIGHT, SAID .095 INCH THICK LAYER BEING OF SUFFICIENT AREA TO HAVE PORTIONS THEREOF EXTENDING OUTWARDLY FROM BETWEEN THE TRANSPARENT PANELS TO PROVIDE A FLEXIBLE ATTACHING FLANGE FOR THE UNIT.
References Cited (Backward Citations)
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Cited
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US2032663A
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Cited
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |