US3124470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gkade glass
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:50
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C8/00; C03C8/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A LEAD-FREE SILICATE GLASS HAVING A COEFFICIENT OF EXPANSION BETWEEN ABOUT 96 AND 99X10**-7 AND CONSISTING ESSENTIALLY OF IN MOLE PERCENT, SILICA ABOUT 68 PERCENT, TITANIUM DIOXIDE ABOUT 4 PERCENT, CALCIUM OXIDE ABOUT 12.2 PERCENT, LITHIA ABOUT 0.7 PERCENT, SODA ABOUT 10.5 PERCENT, POTASSIUM OXIDE ABOUT 2 PERCENT, AND LANTHANUM OXIDE ABOUT 2.6 PERCENT.
Claim 2
Dependent Claim
54 words
A LEAD-FREE SILICATE GLASS HAVING A COEFFICIENT OF EXPANSION BETWEEN ABOUT 96 AND 99X10**-7 AND CONSISTING ESSENTIALLY OF IN MOLE PERCENT, SILICA ABOUT 68 PERCENT, TITANIUM DIOXIDE ABOUT 4 PERCENT, CALCIUM OXIDE ABOUT 12.2 PERCENT, LITHIA ABOUT 0.7 PERCENT, SODA ABOUT 10.5 PERCENT, POTASSIUM OXIDE ABOUT 2 PERCENT, AND LANTHANUM OXIDE ABOUT 2.6 PERCENT.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |