Patent US2885276A successfully refreshed from Google Patents.
US2885276A
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Abrasive products and method of making
Assignee: Chemical Res Corp
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Filing: 1957-07-16
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Granted: 1959-05-05
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Expires: 1977-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr George Upton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:05
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/32; C08J2375/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
ANF ABRASIVE WHEEL DENSIFIED BY PRESSURE TO A DENSITY OF AT LEAST ABOUT 0.439 GRAM PER CUBIC CENTIMETER, SAID WHEEL BEING CHARACTERIZED BY A FOAM STRUCTURE OF THIN ELASTIC FILMS AND DISCREET ABRASIVE GRAINS DISPERSED THERETHROUGH, SEVERALLY EMBEDDED IN AN D RETAINED BY SAID FILMS OF THE ELASTIC SOLID AS A CONTINUOUS ELASTIC BOND, THE WEIGHT OF SAID GRAINS BEING,AT LEAST EQUAL TO THE WEIGHT OF SAID ELASTIC BOND, THE SAID FOAM STRUCTURE COMPRISING THE FOAMED REACTION PRODUCT OF REAGENTS OF THE CLASS CONSISTING OF ALIPHATIC POLYESTERS AND POLYETHERS, WITH ISOCYANATES, REACTED TO POLYMERIZE AND FORM ELASTOMERS, AS THE SAID BOND.
Claim 2
Dependent Claim
101 words
ANF ABRASIVE WHEEL DENSIFIED BY PRESSURE TO A DENSITY OF AT LEAST ABOUT 0.439 GRAM PER CUBIC CENTIMETER, SAID WHEEL BEING CHARACTERIZED BY A FOAM STRUCTURE OF THIN ELASTIC FILMS AND DISCREET ABRASIVE GRAINS DISPERSED THERETHROUGH, SEVERALLY EMBEDDED IN AN D RETAINED BY SAID FILMS OF THE ELASTIC SOLID AS A CONTINUOUS ELASTIC BOND, THE WEIGHT OF SAID GRAINS BEING,AT LEAST EQUAL TO THE WEIGHT OF SAID ELASTIC BOND, THE SAID FOAM STRUCTURE COMPRISING THE FOAMED REACTION PRODUCT OF REAGENTS OF THE CLASS CONSISTING OF ALIPHATIC POLYESTERS AND POLYETHERS, WITH ISOCYANATES, REACTED TO POLYMERIZE AND FORM ELASTOMERS, AS THE SAID BOND.
References Cited (Backward Citations)
GB716422A
Cited
US2764565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |