US3300323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gray glass composition
Assignee: AGC Glass Europe SA
•
Filing: 1965-06-11
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Granted: 1967-01-24
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Plumat Emile
- 👤 Jaupain Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:23
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/087; C03C1/00; C03C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN THE MANUFACTURE OF GRAY COLORED GLASS FROM A SODA-LIME GLASS COMPOSITION THE IMPROVEMENT COMPRISING THE ADDITION OF SAID SODA-LIME GLASS COMPOSITION OF 2 TO 6% TITANIUM DIOXIDE, LESS THAN 2% MANGANESE DIOXIDE, 0.05 TO 0.5% FERRIC OXIDE AND 0.005 TO 0.010% COBALT OXIDE.
Claim 2
Dependent Claim
44 words
IN THE MANUFACTURE OF GRAY COLORED GLASS FROM A SODA-LIME GLASS COMPOSITION THE IMPROVEMENT COMPRISING THE ADDITION OF SAID SODA-LIME GLASS COMPOSITION OF 2 TO 6% TITANIUM DIOXIDE, LESS THAN 2% MANGANESE DIOXIDE, 0.05 TO 0.5% FERRIC OXIDE AND 0.005 TO 0.010% COBALT OXIDE.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |