US2811430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasives
Assignee: Abrasive and Metal Products Co
•
Filing: 1955-04-25
•
Granted: 1957-10-29
•
Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 John R Gregor
- 👤 Harold E Van Orden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:00
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/34; B24D3/342; B24D3/344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN ABRASIVE ARTICLE COMPRISING ABRASIVE GRAINS, A THERMOSTAT BINDER RESIN AND A FILLER CONSISTING OF AT LEAST ONE ALKALI METAL SALT OF SULFURIC, HYDROCHLORIC AND HYDROBROMIC ACIDS IN ADMIXTURE WITH FROM 5% TO 70% ZINC SULFIDE BY VOLUME OF THE TOTAL MIXER FILLER, SAID ADMIXED FILLER CONSTITUTING AT LEAST ABOUT 2% BY VOLUME OF THE TOTAL BONDING MATERIAL.
Claim 2
Dependent Claim
58 words
AN ABRASIVE ARTICLE COMPRISING ABRASIVE GRAINS, A THERMOSTAT BINDER RESIN AND A FILLER CONSISTING OF AT LEAST ONE ALKALI METAL SALT OF SULFURIC, HYDROCHLORIC AND HYDROBROMIC ACIDS IN ADMIXTURE WITH FROM 5% TO 70% ZINC SULFIDE BY VOLUME OF THE TOTAL MIXER FILLER, SAID ADMIXED FILLER CONSTITUTING AT LEAST ABOUT 2% BY VOLUME OF THE TOTAL BONDING MATERIAL.
References Cited (Backward Citations)
US1918996A
Cited
US2216135A
Cited
US2253235A
Cited
US2325180A
Cited
US2308982A
Cited
US2308981A
Cited
US2377995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |