US3111401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive articles
Assignee: Unifrax I LLC
•
Filing: 1960-12-05
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Granted: 1963-11-19
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 John C Cohen
- 👤 Edward Roy B Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/34; B24D3/342; B24D3/344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN ABRASIVE ARTICLE COMPRISING ABRASIVE GRAINS BONDED WITH AN ORGANIC BOND AND HAVING DISTRIBUTED UNIFORMLY THROUGHOUT SAID BOND A REACTIVE FILLER INCLUDING A USEFUL AMOUNT OF A POTASSIUM ZIRCONIUM FLURIDE SELECTED FROM THE GROUP CONSISTNG OF K2ZRF6 AND KZRF5,
Claim 2
Dependent Claim
18 words
AN ABRASIVE ARTICLE AS SET FORTH IN CLAIM 5 IN WHICH SAID ORGANIC BOND IS A PHENOLIC RESIN.
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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |