US3036907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal bonded abrasive composition
Assignee: Saint Gobain Abrasives Inc
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Filing: 1959-09-22
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Granted: 1962-05-29
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Expires: 1979-09-22
Abstract
No abstract record available.
Inventors
- 👤 Gareth L Bibbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:06
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
107 words
A METAL BONDED ABRASIVE PRODUCT CONSISTING OF ABRASIVE GRAIN OF FROM 5 TO 75 VOLUME PERCENT BONDED WITH METAL BOND CONSISTING ESSENTIALLY OF AT LEAST 86% BY WEIGHT OF METAL SELECTED FROM THE GROUP CONSISTING OF IRON AND FERRITE STRENGTHENING METALS, AND MIXTURES THEREOF, AT LEAST 50% OF THE WEIGHT OF THE BOND BEING IRON, THE BOND ALSO INCLUDING FROM 0.4% TO 5% BY WEIGHT PHOSPHOROUS, FROM A TRACE AMOUNT OF CARBON TO 0.8% CARBON AND FROM ZERO TO 7% SULPHUR, SAID BOND HAVING A MELTING POINT ABOVE 750*C. AND HAVING BEEN SINTERED AT A TEMPERATURE OF BETWEEN 750*C. AND 1100*C., SAID PHOSPHOROUS PRODUCING GRAIN BOUNDARY WEAKENING
Claim 2
Dependent Claim
107 words
A METAL BONDED ABRASIVE PRODUCT CONSISTING OF ABRASIVE GRAIN OF FROM 5 TO 75 VOLUME PERCENT BONDED WITH METAL BOND CONSISTING ESSENTIALLY OF AT LEAST 86% BY WEIGHT OF METAL SELECTED FROM THE GROUP CONSISTING OF IRON AND FERRITE STRENGTHENING METALS, AND MIXTURES THEREOF, AT LEAST 50% OF THE WEIGHT OF THE BOND BEING IRON, THE BOND ALSO INCLUDING FROM 0.4% TO 5% BY WEIGHT PHOSPHOROUS, FROM A TRACE AMOUNT OF CARBON TO 0.8% CARBON AND FROM ZERO TO 7% SULPHUR, SAID BOND HAVING A MELTING POINT ABOVE 750*C. AND HAVING BEEN SINTERED AT A TEMPERATURE OF BETWEEN 750*C. AND 1100*C., SAID PHOSPHOROUS PRODUCING GRAIN BOUNDARY WEAKENING
Claim 3
Dependent Claim
44 words
A METAL BONDED ABRASIVE PRODUCT ACCORDING TO CLAIM 1 IN WHICH THE FERRITE STRENGTHENING METAL IS SELECTED FROM THE GROUP CONSISTING OF MN, SI, NI, CO, CR, CU,MO,W AND MIXTURES THEREOF FROM 0.5% TO THE LIMIT OF SOLID SOLUBILITY OF SUCH METAL IN IRON.
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) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |