US3249489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated safety glass
Assignee: Monsanto Co
•
Filing: 1965-05-17
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Granted: 1966-05-03
•
Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Lavin Edward
- 👤 George E Mont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:50
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10688; B32B17/10761; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
131 words
AN IMPROVED LAMINATED SAFETY-GLASS COMPRISING TWO LAYERS OF GLASS BONDED T A PLASTICIZED POLYVINYL ACETAL INTERLAYERS; SAID INTERLAYER HAVING A MOISTURE CONTENT OF 0.1 TO 0.8% BY WEIGHT AND CONTAINING SUFFICIENT SALTS OF ORGANIC ACIDS TO PRODUCE AN ALKALINITY TITER OF 10 TO 50, SAID SALTS BEING A MIXTURE OF AT LEAST ONE METAL ACETATE AND AT LEAST ONE METAL SALT OF A SATURATED ALIPHATIC DICARBOXYLIC ACID TO FROM 4 TO 9 CARBONA TOMS, WHEREIN, IN EACH INSTANCE, SAID METAL IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, AND METALS OF GROUPS I-B, II-B AND III-A OF THE PERIODIC TABLE, SAID MIXTURE CONTAINING SUFFICIENT METAL ACETATE TO PRODUCE AN ALKALINITY TITER OF AT LEAST ABOUT 5 AND UP TO ABOUT 80% OF THE TOTAL ALKALINITY TITER.
Claim 2
Dependent Claim
131 words
AN IMPROVED LAMINATED SAFETY-GLASS COMPRISING TWO LAYERS OF GLASS BONDED T A PLASTICIZED POLYVINYL ACETAL INTERLAYERS; SAID INTERLAYER HAVING A MOISTURE CONTENT OF 0.1 TO 0.8% BY WEIGHT AND CONTAINING SUFFICIENT SALTS OF ORGANIC ACIDS TO PRODUCE AN ALKALINITY TITER OF 10 TO 50, SAID SALTS BEING A MIXTURE OF AT LEAST ONE METAL ACETATE AND AT LEAST ONE METAL SALT OF A SATURATED ALIPHATIC DICARBOXYLIC ACID TO FROM 4 TO 9 CARBONA TOMS, WHEREIN, IN EACH INSTANCE, SAID METAL IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, AND METALS OF GROUPS I-B, II-B AND III-A OF THE PERIODIC TABLE, SAID MIXTURE CONTAINING SUFFICIENT METAL ACETATE TO PRODUCE AN ALKALINITY TITER OF AT LEAST ABOUT 5 AND UP TO ABOUT 80% OF THE TOTAL ALKALINITY TITER.
Claim 3
Dependent Claim
15 words
AN IMPROVED LAMINATED SAFETY-GLASS AS IN CLAIM 1 WHEREIN THE POLYVINYL ACETAL IS POLYVINYL BUTYRAL.
References Cited (Backward Citations)
US2456462A
Cited
US2496480A
Cited
US2720501A
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US2860122A
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US2859207A
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US2946711A
Cited
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 |