US3684540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezing-mixing process
Assignee: CAMILLA B ROSS
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Filing: 1970-12-24
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Granted: 1972-08-15
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Expires: 1990-12-24
Abstract
Abstract MATERIALS WHICH ARE NORMALLY REACTIVE WITH EACH OTHER CAN BE MIXED TOGETHER IN PARTICULATE FORM WHEN ONE OF THE NORMALLY REACTIVE MATERIALS IS FIRST RENDERED INACTIVE BY FREEZING. A UNIFORM BLEND OF THE MATERIALS CAN THEN BE OBTAINED AND THE FROZEN COMPONENT OF THE BLEND CAN SUBSEQUENTLY BE THAWED AND THE MATERIALS BE PERMITTED TO REACT WITH EACH OTHER.
Inventors
- 👤 William E Henderson
- 👤 Camilla B Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/22; C08L1/24; C08L89/00; C08L89/04; C08L89/06
Claims Analysis
Total Claims: 0
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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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |