US2955030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing compositions
Assignee: NL Industries Inc
•
Filing: 1959-02-25
•
Granted: 1960-10-04
•
Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 William J Baldwin
- 👤 Jerald L Bliton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:29
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A COMPOSITION ADAPTED FOR USE IN LIQUID SUSPENSION IN POLISHING GLASS, STONE, AND THE LIKE WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF FINELY DIVIDED ZIRCON AND AT LEAST ONE FINELY DIVIDED, METALLIC OXIDE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZNO, FE2O3 AND CDO.
Claim 2
Dependent Claim
44 words
A COMPOSITION ADAPTED FOR USE IN LIQUID SUSPENSION IN POLISHING GLASS, STONE, AND THE LIKE WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF FINELY DIVIDED ZIRCON AND AT LEAST ONE FINELY DIVIDED, METALLIC OXIDE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZNO, FE2O3 AND CDO.
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) | 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 |