US3427770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Compagnie de Saint Gobain SA
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Filing: 1965-10-11
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Granted: 1969-02-18
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Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Heinz Kunert
- 👤 Wilhelm Biermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10293; B29; B29C; B29C65/00; B29C65/48; B32B17/10009; B32B17/10018; B32B17/10036; B32B17/10082; B32B17/10091; B32B17/1055; B32B17/10761; B60; B60J; B60J1/00; B60J1/02; B60J1/20; B60J1/2094; C; C03; C03B; C03B27/00; B29C66/00; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A WINDOW COMPRISING A FIRST SHEET OF TEMPERED GLASS BONDED TO A SECOND SHEET OF UNTEMPERED TRANSPARENT MATERIAL AND OF SMALLER SIZE THAN SAID FIRST SHEET, SAID SHEETS BEING SECURED TOGETHER IN SURFACE-TO-SURFACE RELATION TO LEAVE A BORDER OF SAID FIRST SHEET WHICH EXTENDS BEYOND THE PERIPHERY OF SAID SECOND SHEET AND IS ADAPTED TO BE GRIPPED BY A FRAME, THE SAID BORDER BEING HIGHLY TEMPERED AND FRANGIBLE INTO SMALL PIECES.
Claim 2
Dependent Claim
71 words
A WINDOW COMPRISING A FIRST SHEET OF TEMPERED GLASS BONDED TO A SECOND SHEET OF UNTEMPERED TRANSPARENT MATERIAL AND OF SMALLER SIZE THAN SAID FIRST SHEET, SAID SHEETS BEING SECURED TOGETHER IN SURFACE-TO-SURFACE RELATION TO LEAVE A BORDER OF SAID FIRST SHEET WHICH EXTENDS BEYOND THE PERIPHERY OF SAID SECOND SHEET AND IS ADAPTED TO BE GRIPPED BY A FRAME, THE SAID BORDER BEING HIGHLY TEMPERED AND FRANGIBLE INTO SMALL PIECES.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |