US3278318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tungsten oxide-metal metaphosphate glasses
Assignee: Bausch and Lomb Inc
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Filing: 1963-03-28
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Granted: 1966-10-11
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Hensler
- 👤 Robert A Weidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:10
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A GLASS COMPOSITION CONSISTING ESSENTIALLY OF TUNGSTEN OXIDE AND AT LEAST ONE METHOAPHOSPHATE, SELECTED FROM THE GROUP CONSISTING OF BARIUM METAPHOSPHATE, POTASSIUM METAPHOSPHATE, SODIUM METAPHOSPHATE, LITHIUM METAPHOSPHATE, MAGNESIUM METAPHOSPHATE, CALCIUM METAPHOSPHATE, WHEREIN THE TUNGSTEN OXIDE IS PRESENT WITHIN THE RANGE OF 15-85 WEIGHT PERCENT AND THE METAPHOSPHATE IS PRESENT IN THE RANGE OF 15-85 WEIGHT PERCENT.
Claim 2
Dependent Claim
56 words
A GLASS COMPOSITION CONSISTING ESSENTIALLY OF TUNGSTEN OXIDE AND AT LEAST ONE METHOAPHOSPHATE, SELECTED FROM THE GROUP CONSISTING OF BARIUM METAPHOSPHATE, POTASSIUM METAPHOSPHATE, SODIUM METAPHOSPHATE, LITHIUM METAPHOSPHATE, MAGNESIUM METAPHOSPHATE, CALCIUM METAPHOSPHATE, WHEREIN THE TUNGSTEN OXIDE IS PRESENT WITHIN THE RANGE OF 15-85 WEIGHT PERCENT AND THE METAPHOSPHATE IS PRESENT IN THE RANGE OF 15-85 WEIGHT 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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |