US3258352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing in a glass article stresses heterogeneously distributed
Assignee: Compagnie de Saint Gobain SA
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Filing: 1961-01-09
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Granted: 1966-06-28
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Paymal Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:15
CPC Classifications
C; C03; C03C; C03C23/00; C03C23/0005; C03C23/004; C03C23/0045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A PROCESS TO INDUCE IN A SILICATE GLASS ARTICLE STRESSES VARYING LATERALLY FROM ONE ZONE TO ANOTHER OF ITS BREADTH, WHICH COMPRISES EXPOSING A FIRST PART OF THE GLASS ARTICLE TO CORPUSCULAR RADIATION WHILE EXCLUDING A SECOND PART OF THE ARTICLE, WHICH IS LATERALLY DISPOSED WITH RESPECT TO THE FIRST PART, FROM EQUIVALENT EXPOSURE.
Claim 2
Dependent Claim
54 words
A PROCESS TO INDUCE IN A SILICATE GLASS ARTICLE STRESSES VARYING LATERALLY FROM ONE ZONE TO ANOTHER OF ITS BREADTH, WHICH COMPRISES EXPOSING A FIRST PART OF THE GLASS ARTICLE TO CORPUSCULAR RADIATION WHILE EXCLUDING A SECOND PART OF THE ARTICLE, WHICH IS LATERALLY DISPOSED WITH RESPECT TO THE FIRST PART, FROM EQUIVALENT EXPOSURE.
Claim 3
Independent Claim
34 words
A METHOD OF MAKING A GLASS ARTICLE HAVING A ZONE CAPABLE OF INTERRUPTING THE FRAGMENTATION OF THE GLASS WHICH COMPRISES IRRADIATING A BARRIER ZONE WITH CORPUSCULAR RADIATION UNTIL THE ZONE IS UNDER COMPRESSION STRESSES.
Claim 4
Independent Claim
34 words
A METHOD OF MAKING A GLASS ARTICLE HAVING A ZONE CAPABLE OF INTERRUPTING THE FRAGMENTATION OF THE GLASS WHICH COMPRISES IRRADIATING A BARRIER ZONE WITH CORPUSCULAR RADIATION UNTIL THE ZONE IS UNDER COMPRESSION STRESSES.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |