Patent US3249487A successfully refreshed from Google Patents.
US3249487A
Expired / Lapsed
US
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Safety laminates
Assignee: Monsanto Co
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Filing: 1963-10-23
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Granted: 1966-05-03
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Francis T Buckley
- 👤 Joseph S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:31
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10688; B32B17/10761; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN AN IMPROVED LAMINATED STRUCTURE COMPRISING AT LEAST TWO GLASS PANELS HAVING INTERPOSED BETWENTHE VARIOUS PANELS A PLASTICIZED POLYVINYL ACETAL INTERLAYER HAVING A MOISTURE CONTENT OF AT LEAST 0.1% BY WEIGHT, THE IMPROVEMENT WHICH COMPRISES INCORPORATING SUFFICIENT CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF SALTS, BASES AND MIXTURES OF SALTS AND BASES OF MAGNESIUM INTO THE INTERLAYER TO PRODUCE ANALKALINITY TITER HAVING A MINIMUM LEVEL INVERSELY PROPORTIONAL TO THE MOISTURE CONTENT AND IN EXCESS OF 50.
Claim 2
Dependent Claim
76 words
IN AN IMPROVED LAMINATED STRUCTURE COMPRISING AT LEAST TWO GLASS PANELS HAVING INTERPOSED BETWENTHE VARIOUS PANELS A PLASTICIZED POLYVINYL ACETAL INTERLAYER HAVING A MOISTURE CONTENT OF AT LEAST 0.1% BY WEIGHT, THE IMPROVEMENT WHICH COMPRISES INCORPORATING SUFFICIENT CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF SALTS, BASES AND MIXTURES OF SALTS AND BASES OF MAGNESIUM INTO THE INTERLAYER TO PRODUCE ANALKALINITY TITER HAVING A MINIMUM LEVEL INVERSELY PROPORTIONAL TO THE MOISTURE CONTENT AND IN EXCESS OF 50.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |