US3271233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated safety glass
Assignee: Monsanto Co
•
Filing: 1965-09-21
•
Granted: 1966-09-06
•
Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Lavin Edward
- 👤 George E Mont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:17
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; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN IMPROVED LAMINATED SAFETY-GLASS COMPRISING TWO LAYERS OF GLASS BONDED TO A PLASTICIZED POLYVINYL ACETAL INTERLAYER; SAID INTERLAYER HAVING A MOISTURE CONTENT OF 0.2 TO 0.8% BY WEIGHT AND CONTAINING SUFFICIENT ALKALI AND ALKALINE EARTH METAL SALTS OF SUBSTITUTED ACETIC ACIDS WHEREIN THE SUBSTITUTED ACETIC ACID PORTION IS SELECTED FROM THE GROUP CONSISTING OF GLYCINE, GLYCOLIC ACID, PHENYLACETIC ACID, CHLOROACETIC ACID AND PHENOXYMETHYL ACETIC ACID TO PRODUCE AN ALKALINITY TTITER OF AT LEAST 3.
Claim 2
Dependent Claim
74 words
AN IMPROVED LAMINATED SAFETY-GLASS COMPRISING TWO LAYERS OF GLASS BONDED TO A PLASTICIZED POLYVINYL ACETAL INTERLAYER; SAID INTERLAYER HAVING A MOISTURE CONTENT OF 0.2 TO 0.8% BY WEIGHT AND CONTAINING SUFFICIENT ALKALI AND ALKALINE EARTH METAL SALTS OF SUBSTITUTED ACETIC ACIDS WHEREIN THE SUBSTITUTED ACETIC ACID PORTION IS SELECTED FROM THE GROUP CONSISTING OF GLYCINE, GLYCOLIC ACID, PHENYLACETIC ACID, CHLOROACETIC ACID AND PHENOXYMETHYL ACETIC ACID TO PRODUCE AN ALKALINITY TTITER OF AT LEAST 3.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |