Patent US3589793A successfully refreshed from Google Patents.
Patent US3498876A successfully refreshed from Google Patents.
US3498876A
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US
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Low expansion copper-zinc-aluminosilicate glass compositions,composite article and mirror
Assignee: OI Glass Inc
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Filing: 1966-12-29
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Granted: 1970-03-03
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Expires: 1986-12-29
Abstract
No abstract record available.
Inventors
- 👤 Nils Tryggve E A Baak
- 👤 Charles F Rapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:43
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C8/00; C03C8/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1532002A
Cited
US3121605A
Cited
US3282711A
Cited
US3294496A
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US3414465A
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US3451579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |