US2955031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass polishing compositions
Assignee: NL Industries Inc
•
Filing: 1959-02-25
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Granted: 1960-10-04
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Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jerald L Bliton
- 👤 William J Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:44
CPC Classifications
C; C03; C03C; C03C19/00; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1472; C10; C10G; C10G29/00; C10G29/20; H; H01; H01B; H01B3/00; H01B3/18; H01B3/20; H01B3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMPOSITION ADAPTED FOR USE IN LIQUID SUSPENSION IN POLISHING GLASS WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF AN OXIDIC GLASS POLISHING AGENT AND AN ADDITIVE, SAID POLISHING AGENT BEING AT LEAST ONE FINELY DIVIDED OXIDE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIA, CERIA, TITANIA, ALUMINA, FERRIC OXIDE, STANNIC OXIDE AND SILICA AND INCLUDING A SUBSTANTIAL AMOUNT OF AT LEAST ONE OF THE FIRST THREE MEMBERS OF SAID GROUP AND SAID ADDITIVE BEING AT LEAST ONE FINELY DIVIDED OXIDE SELECTED FROM THE GROUP OF MONOXIDES OF METALS OF GROUPS IIB AND IVA OF THE PERIODIC SERIES CONSISTING OF ZNO, CDO AND PBO, SAID POLISHING AGENT AND SAID ADDITIVE CONSTITUTING RESPECTIVELY, FROM ABOUT 90% TO 10% AND FROM ABOUT 10% TO 90% OF SAID COMPOSITION, EXCLUSIVE OF IMPURITIES.
Claim 2
Dependent Claim
127 words
A COMPOSITION ADAPTED FOR USE IN LIQUID SUSPENSION IN POLISHING GLASS WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF AN OXIDIC GLASS POLISHING AGENT AND AN ADDITIVE, SAID POLISHING AGENT BEING AT LEAST ONE FINELY DIVIDED OXIDE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIA, CERIA, TITANIA, ALUMINA, FERRIC OXIDE, STANNIC OXIDE AND SILICA AND INCLUDING A SUBSTANTIAL AMOUNT OF AT LEAST ONE OF THE FIRST THREE MEMBERS OF SAID GROUP AND SAID ADDITIVE BEING AT LEAST ONE FINELY DIVIDED OXIDE SELECTED FROM THE GROUP OF MONOXIDES OF METALS OF GROUPS IIB AND IVA OF THE PERIODIC SERIES CONSISTING OF ZNO, CDO AND PBO, SAID POLISHING AGENT AND SAID ADDITIVE CONSTITUTING RESPECTIVELY, FROM ABOUT 90% TO 10% AND FROM ABOUT 10% TO 90% OF SAID COMPOSITION, EXCLUSIVE OF IMPURITIES.
References Cited (Backward Citations)
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US876447A
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US2396398A
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US2554070A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |