Patent US2524960A successfully refreshed from Google Patents.
US2524960A
Expired / Lapsed
US
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Safety glass
Assignee: Rhone Poulenc SA
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Filing: 1946-05-08
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Granted: 1950-10-10
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Expires: 1966-05-08
Abstract
No abstract record available.
Inventors
- 👤 Cottet Emile Clement
- 👤 Chazal Rene Louis Fernand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A SAFETY-GLASS UNIT COMPRISING TWO JUXTAPOSED GLASS SHEETS AND AN INTERMEDIATE FILM OF POLYVINYL ALCHOL, WHEREIN THE BOND BETWEEN THE INTERMEDIATE FILM AND THE FACING GLASS SURFACES IS SECURED BY AN ADHESIVE COMPRISING WATER-SOLUBLE METHYL SILICATE.
Claim 2
Dependent Claim
36 words
A SAFETY-GLASS UNIT COMPRISING TWO JUXTAPOSED GLASS SHEETS AND AN INTERMEDIATE FILM OF POLYVINYL ALCHOL, WHEREIN THE BOND BETWEEN THE INTERMEDIATE FILM AND THE FACING GLASS SURFACES IS SECURED BY AN ADHESIVE COMPRISING WATER-SOLUBLE METHYL SILICATE.
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) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |