Patent US6270509B1 successfully refreshed from Google Patents.
US2728651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond abrasive wheel
Assignee: General Electric Co
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Filing: 1952-11-25
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Granted: 1955-12-27
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Expires: 1972-11-25
Abstract
No abstract record available.
Inventors
- 👤 Howard T Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
THE METHOD OF MAKING AN ABRASIVE DEVICE WHICH COMPRISES APPLYING AN ADHERENT SOLDER COATING TO A ROTATABLE METAL WHEEL, STIRRING A PLURALITY OF DIAMONDS IN A SLURRY CONTAINING TITANIUM HYDRIDE IN AN ORGANIC SOLVENT, EVAPORATING THE SOLVENT, APPLYING THE TITANIUM HYDRIDE COATED DIAMONDS UNIFORMLY OVER THE SOLDER COATING, AND DISSOCIATING THE HYDRIDE AND MELTING THE SOLDER BY HEATING THE DEVICE TO A TEMPERATURE ABOVE 400* C. IN AN ATMOSPHERE INERT WITH RESPECT TO THE METAL OF THE HYDRIDE.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |