US3334982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of silica glass
Assignee: Compagnie de Saint Gobain SA
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Filing: 1962-01-30
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Granted: 1967-08-08
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Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Mattmuller Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:35
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/14; C03B19/1415; C03B2201/00; C03B2201/06; C03B2201/30; C03B2201/31; C03B2201/32; C03B2201/50; C03B2207/00; C03B2207/04; C03B2207/06; C03B2207/20; C03B2207/26; C03B2207/28; C03B2207/36; C03B2207/46; C03B2207/80; C03B2207/81; C03B2207/85; C03B2207/86; C03B2207/87; C03B2207/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF PREPARING SILICA GLASS THAT COMPRISES ENTRAINING A SILICON HALIDE IN A CURRENT OF CHLORINE, BRINGING THE CURRENT TOGETHER WITH CURRENTS OF OXYGEN AND HYDROGEN AND IGNITING THEM, AND CONDENSING THE GLASS FORMED ON A COLD SURFACE.
Claim 2
Independent Claim
39 words
A METHOD OF PREPARING SILICA GLASS THAT COMPRISES ENTRAINING A SILICON HALIDE IN A CURRENT OF CHLORINE, BRINGING THE CURRENT TOGETHER WITH CURRENTS OF OXYGEN AND HYDROGEN AND IGNITING THEM, AND CONDENSING THE GLASS FORMED ON A COLD SURFACE.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |