US3389047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of coverplates for glass laminates
Assignee: Monsanto Co
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Filing: 1965-10-20
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Granted: 1968-06-18
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Lavin Edward
- 👤 George E Mont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10688; B32B17/10807; B32B17/1088; B32B17/10981; C; C03; C03C; C03C23/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
AN IMPROVED GLASS SHEET FOR USE IN LAMINATED AUTOMOTIVE GLAZING UNITS AND ARCHITECTURAL LAMINATES WHICH COMPRISES AT LEAST TWO SILICA CONTAINING GLASS SHEETS HAVING AN INTERLAYER OF POLY(VINYL BUTYRAL) INTERPOSED BETWEEN AND IN DIRECT CONTACT WITH THE GLASS SHEETS; WHEREIN AT LEAST ONE OF THE SURFACES OF THE GLASS SHEET THAT IS IN DIRECT CONTACT WITH THE POLY(VINYL BUTYRAL) INTERLAYER HAS BEEN TREATED WITH A BASIC SOLUTION SO AS TO FORM A SILICA TYPE GEL ON THE TREATED GLASS SURFACE AND WHEREIN THE BASIC SOLUTION IS SELECTED FROM THE GROUP CONSISTING OF SOLUTIONS OF HYDROXIDES OF ALKALI AND ALKALINE EARTH METALS, WHEREIN THE CONCENTRATION OF THE SOLUTION IS AT LEAST 0.001 N.
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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |