US3852049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vitreous-bonded cubic boron nitride abrasive grinding system
Assignee: General Electric Co
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Filing: 1973-04-02
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Granted: 1974-12-03
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Expires: 1993-04-02
Abstract
Abstract A vitreous-bonded cubic boron nitride abrasive grinding system for wet grinding is described utilizing borosilicate glass in combination with a metal filler. The metal is selected from the class consisting of molybdenum, tungsten and alloys thereof.
Inventors
- 👤 W Reed
- 👤 L Hibbs
- 👤 K Darrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:29
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/583; C04B35/5831
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
A VITREOUS-BONDED ABRASIVE ARTICLE SYSTEM COMPRISING IN COMBINATION CUBIC BORON NITRIDE GRAINS, A BOROSILICATE GLASS AND METAL POWDER FILLER, THE METAL BEING SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND ALLOYS THEREOF.
Claim 2
Dependent Claim
32 words
A VITREOUS-BONDED ABRASIVE ARTICLE SYSTEM COMPRISING IN COMBINATION CUBIC BORON NITRIDE GRAINS, A BOROSILICATE GLASS AND METAL POWDER FILLER, THE METAL BEING SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND ALLOYS THEREOF.
Claim 3
Dependent Claim
22 words
The vitreous-bonded abrasive article recited in claim 1 wherein the abrasive system consists of the following materials (expressed in volume per cent):
Claim 4
Dependent Claim
14 words
The vitreous-bonded abrasive article recited in claim 1 wherein the metal filler is molybdenum.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |