US2955384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing color-controlling vitreous materials
Assignee: OI Glass Inc
•
Filing: 1958-02-27
•
Granted: 1960-10-11
•
Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 William B Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:45
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US576312A
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US805139A
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US2115408A
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US2148345A
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US2268247A
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US2538956A
Cited
US2397852A
Cited
GB667474A
Cited
US2753256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |