US3081205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety glass glazing unit
Assignee: PPG Industries Inc
•
Filing: 1959-06-15
•
Granted: 1963-03-12
•
Expires: 1979-06-15
Abstract
No abstract record available.
Inventors
- 👤 Shorr Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:57
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1492; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10293; B32B17/10366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A LAMINATED GLASS PANEL COMPRISING FIRST AND SECOND GLASS SHEETS, A THERMOPLASTIC SHEET HAVING A RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION COMPARED TO THAT OF GLASS INTERPOSED BETWEEN AND BONDED TO SAID FIRST AND SECOND GLASS SHEETS, SAID THERMOPLASTIC SHEET HAVING A MARGINAL PORTION EXTENDING OUTWARDLY FROM THE PERIPHERAL EDGE OF THE FIRST GLASS SHEET AND BEYOND THE PERIPHERAL EDGE OF THE SECOND GLASS SHEET, AND A PAIR OF SPACED FRAMES OF A MATERIAL HAVING A RELATIVELY LOW COEFFICIENT OF THERMAL EXPANSION COMPARED TO THAT OF THE THERMOPLASTIC SHEET AND A RELATIVELY HIGH MODULUS OF ELASTICITY EMBEDDED IN AND BONDED TO THE THERMOPLASTIC SHEET; SAID FRAMES BEING IN AT LEAST A PART OF THE MARGINAL PORTION OF THE THERMOPLASTIC SHEET AND BEING ON OPPOSITE SIDES OF AND SPACES FROM A PLANE OF THE THERMOPLASTIC SHEET, SAID PLANE BEING EQUIDISTANT FROM THE SURFACES OF A PART OF SAID MARGINAL PORTION OF THE THERMOPLASTIC SHEET HAVING A MINIMUM THICKNESS IN AN AREA OF THE THERMOPLASTIC SHEET EXTENDING OUTWARDLY FROM THE PERIPHERAL EDGE OF SAID FIRST GLASS SHEET TO AN OUTER BOUNDARY OF SAID PART AND SAID BOUNDARY BEING 1/2 INCH OUTWARDLY OF THE PERIPHERAL EDGE OF SAID SECOND GLASS SHEET.
Claim 2
Dependent Claim
198 words
A LAMINATED GLASS PANEL COMPRISING FIRST AND SECOND GLASS SHEETS, A THERMOPLASTIC SHEET HAVING A RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION COMPARED TO THAT OF GLASS INTERPOSED BETWEEN AND BONDED TO SAID FIRST AND SECOND GLASS SHEETS, SAID THERMOPLASTIC SHEET HAVING A MARGINAL PORTION EXTENDING OUTWARDLY FROM THE PERIPHERAL EDGE OF THE FIRST GLASS SHEET AND BEYOND THE PERIPHERAL EDGE OF THE SECOND GLASS SHEET, AND A PAIR OF SPACED FRAMES OF A MATERIAL HAVING A RELATIVELY LOW COEFFICIENT OF THERMAL EXPANSION COMPARED TO THAT OF THE THERMOPLASTIC SHEET AND A RELATIVELY HIGH MODULUS OF ELASTICITY EMBEDDED IN AND BONDED TO THE THERMOPLASTIC SHEET; SAID FRAMES BEING IN AT LEAST A PART OF THE MARGINAL PORTION OF THE THERMOPLASTIC SHEET AND BEING ON OPPOSITE SIDES OF AND SPACES FROM A PLANE OF THE THERMOPLASTIC SHEET, SAID PLANE BEING EQUIDISTANT FROM THE SURFACES OF A PART OF SAID MARGINAL PORTION OF THE THERMOPLASTIC SHEET HAVING A MINIMUM THICKNESS IN AN AREA OF THE THERMOPLASTIC SHEET EXTENDING OUTWARDLY FROM THE PERIPHERAL EDGE OF SAID FIRST GLASS SHEET TO AN OUTER BOUNDARY OF SAID PART AND SAID BOUNDARY BEING 1/2 INCH OUTWARDLY OF THE PERIPHERAL EDGE OF SAID SECOND GLASS SHEET.
References Cited (Backward Citations)
US2758042A
Cited
US2991207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |