Patent US3644130A successfully refreshed from Google Patents.
US3644130A
Expired / Lapsed
US
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Powdered wax suitable for emulsions and rubber blending
Assignee: Union Oil Company of California
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Filing: 1967-01-23
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Granted: 1972-02-22
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Expires: 1987-01-23
Abstract
Abstract Wax powder which is resistant to congealing is prepared by blending molten wax and an antiblocking agent, dispersing the blend, and then cooling the dispersed blend below its melting point to form the powder.
Inventors
- 👤 Robert R Evans
- 👤 Peter S Backlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:16
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/122; C08L; C08L21/00; C08J2391/00; C08J2391/06; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
The process of claim 1 in which the concentration of antiblocking agent is sufficiently high to prevent congealing of the wax powder. 1 in which the concentration of antiblocking agent is sufficiently high to prevent congealin g of the wax powder.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |