US2866698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond abrasive element
Assignee: Individual
•
Filing: 1953-05-13
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Granted: 1958-12-30
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Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Paul L Kuzmick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:28
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A DIAMOND ABRASIVE ELEMENT COMPRISING DIAMOND PARTICLES AND A BOND THEREFOR COMPRISING A METAL PORTION AND A VITRIFIED PORTION, EACH PORTION BEING PRESENT IN PROPORTIONS BETWEEN 40 AND 60% OF THEIR COMBINED WEIGHTS, SAID METAL PORTION COMPRISING, IN PROPORTIONS BY WEIGHT, TUNGSTEN CARBIDE 40-80%, A MEMBER OF THE GROUP CONSISTING OF IRON, COPPER, COBALT, NICKEL AND MIXTURES THEREOF 20-60%, AND A METALLIC FLUXING AGENT 0-8%, SAID VITRIFIED PORTION COMPRISING A HARD GLASS CAPABLE OF WETTING DIAMOND PARTICLES, HAVING A SOFTENING TEMPERATURE BETWEEN 2000* AND 2350*F., AND FORMING A HARD PRODUCT WHEN COOLED, SAID METAL PORTION HAVING SUBSTANTIALLY THE SAME SOFTENING TEMPERATURE AS SAID VITRIFIED PORTION.
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |