Patent US3582419A successfully refreshed from Google Patents.
US3582419A
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US
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Vitreous or vitrocrystalline laminate product
Assignee: AGC Glass Europe SA
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Filing: 1968-04-22
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Granted: 1971-06-01
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Expires: 1988-04-22
Abstract
Abstract A METHOD OF FORMING A VITREOUS OR VITROCRYSTALLINE PRODUCT COMPRISING LAMINATING OUTER LAYERS OF VITREOUS OR VITROCRYSTALLINE MATERIAL WITH A MOLTEN OR PLASTIC LAYER OF GLASS OR VITROCRYSTALLINE MATERIAL WHICH HAS A COEFFICIENT OF THERMAL EXPANSION GREATER THAN THAT OF SAID OUTER LAYERS.
Inventors
- 👤 Jean Marchand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:39
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/203; C03C; C03C17/00; C03C17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |