US2642230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for distributing wax in cemented carbide powders
Assignee: A Johnson and Co London Ltd
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Filing: 1949-07-25
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Granted: 1953-06-16
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Expires: 1969-07-25
Abstract
No abstract record available.
Inventors
- 👤 Porges Leo
- 👤 Stanley T Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:02
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR MIXING, MILLING AND UNIFORMLY DISTRIBUTING A COMPARATIVELY SMALL QUANTITY OF WAX THROUGHOUT FINELY DIVIDED CEMENTED CARBIDE POWERS, COMPRISING THE STEPS OF PLACING FINELY DIVIDED CEMENTED CARBIDE POWDERS IN A CONTAINER, DISSOLVING THE WAX WHICH IT IS DESIRED TO DISTRIBUTE IN A SOLVENT, ADDING THE SOLUTION OF SAID WAX TO SAID FINELY DIVIDED CEMENTED CARBIDE POWDERS, GRINDING THE POWDERS BY SUBJECTING THE POWDERS IN SAID SOLUTION TO A VIOLENT VIBRATION AND EVAPORATING SAID SOLVENT DURING SAID VIOLENT VIBRATION.
Claim 2
Dependent Claim
80 words
A PROCESS FOR MIXING, MILLING AND UNIFORMLY DISTRIBUTING A COMPARATIVELY SMALL QUANTITY OF WAX THROUGHOUT FINELY DIVIDED CEMENTED CARBIDE POWERS, COMPRISING THE STEPS OF PLACING FINELY DIVIDED CEMENTED CARBIDE POWDERS IN A CONTAINER, DISSOLVING THE WAX WHICH IT IS DESIRED TO DISTRIBUTE IN A SOLVENT, ADDING THE SOLUTION OF SAID WAX TO SAID FINELY DIVIDED CEMENTED CARBIDE POWDERS, GRINDING THE POWDERS BY SUBJECTING THE POWDERS IN SAID SOLUTION TO A VIOLENT VIBRATION AND EVAPORATING SAID SOLVENT DURING SAID VIOLENT VIBRATION.
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |