US3192101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety glass
Assignee: EIDP Inc
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Filing: 1962-11-19
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Granted: 1965-06-29
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Koenig Jack Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:33
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10431; B32B17/10467; B32B17/10486; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A THERMOCHROMIC SAFETY GLASS LAMINATE COMPRISING TWO PANES OF GLASS SEPARATED FROM EACH OTHER BY MEANS OF A PLASTICIZED POLYVINYL BUTYRAL INTERLAYER, SAID INTERLAYER CONTAINING A COBALT AMINE COMPLEX SELECTED FROM THE CLASS OF COMPLEXES HAVING THE FORMULA CO(R1)6X2 AND CO(R2)3X2, WHERE R1 IS A UNIDENTATE AMINE LIGAND SELECTED FROM THE CLASS CONSISTING OF PYRIDINE, QUINOLINE, CHLOROPYRIDINE, ISOQUINOLINE, PIPERIDINE, AND PIPERAZINE; R2 IS A BIDENTATE AMINE LIGAND SELECTED FROM THE CLASS CONSISTING OF HEXAMETHYLENE TETRAMINE, 2,2-BIPYRIDINE, AND QUINOLINE DIETHYLCYCLOHEXYL AMINE; AND X IS AN ANION OF THE CLASS CONSISTING OF CHLORIDE, BROMIDE, IODIDE, NITRATE, SULFATE, AND PERCHLORATE.
Claim 2
Dependent Claim
28 words
THE THERMOCHROMIC SAFETY GLASS LAMINATE OF CLAIM 5 IN WHICH THE PLASTICIZED POLYVINYL BUTYRAL INTERLAYER CONTAINS 20 TO 50 PARTS PLASTICIZER PER 100 PARTS BY WEIGHT OF INTERLAYER.
References Cited (Backward Citations)
US2710274A
Cited
US2946711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |