Patent US3070422A successfully refreshed from Google Patents.
US3070422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New chromium-tungsten oxide and preparation
Assignee: OI Glass Inc
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Filing: 1960-08-30
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Granted: 1962-12-25
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Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Bayer Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:20
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/0302; H01F1/0311; H01F1/0313; C; C01; C01G; C01G41/00; H01B; H01B1/00; H01B1/06; H01B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A CRYSTALLINE OXIDE OF THE FORMULA CR2WO6 HAVING A RUTILE CRYSTALLINE STRUCTURE.
Claim 2
Dependent Claim
12 words
A CRYSTALLINE OXIDE OF THE FORMULA CR2WO6 HAVING A RUTILE CRYSTALLINE STRUCTURE.
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |