Patent US3081209A successfully refreshed from Google Patents.
US3081209A
Expired / Lapsed
US
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Tempered glass sheet or plate
Assignee: Compagnie de Saint Gobain SA
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Filing: 1959-07-27
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Granted: 1963-03-12
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Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Chan Andre Do Huu
- 👤 Lambert Roger-Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:15
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/012; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A NEW ARTICLE OF MANUFACTURE COMPRISING A GLASS SHEET HAVING A HIGHLY TEMPERED OUTER ENVIRONAL ZONE, A PARTIALLY TEMPERED INNER ISLET WITHIN SAID ENVIRONAL ZONE, AND A PREDETERMINED RESERVED ZONE SUBSTANTIALLY FREE OF TEMPER, HAVING THE SHAPE OF A CONTINUOUS BAND CLOSED ON ITSELF AND DISPOSED BETWEEN SAID INNER ISLET AND OUTER ENVIRONAL ZONE.
Claim 2
Dependent Claim
54 words
A NEW ARTICLE OF MANUFACTURE COMPRISING A GLASS SHEET HAVING A HIGHLY TEMPERED OUTER ENVIRONAL ZONE, A PARTIALLY TEMPERED INNER ISLET WITHIN SAID ENVIRONAL ZONE, AND A PREDETERMINED RESERVED ZONE SUBSTANTIALLY FREE OF TEMPER, HAVING THE SHAPE OF A CONTINUOUS BAND CLOSED ON ITSELF AND DISPOSED BETWEEN SAID INNER ISLET AND OUTER ENVIRONAL ZONE.
References Cited (Backward Citations)
US2009748A
Cited
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US2177324A
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FR826690A
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US2418713A
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GB606756A
Cited
GB609921A
Cited
US2762166A
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 |