US3385724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for continuously treating powdered materials with stabilizing subsances
Assignee: Individual
•
Filing: 1965-12-02
•
Granted: 1968-05-28
•
Expires: 1985-12-02
Abstract
No abstract record available.
Inventors
- 👤 Grun Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:03
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/22; B; B01; B01F; B01F33/00; B01F33/40; A23; A23C; A23C11/00; A23C11/02; A23C11/04; A23C11/045; A23C9/00; A23C9/16; B01F25/00; B01F25/70; B01F25/72; B01F25/721; B01J; B01J2/00; B01J2/003; B01J2/30; B04; B04C; B04C9/00; B04C2009/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR TREATING A FIRST SUBSTANCE IN POWDER, GRANULAR AND SIMILAR FORM WITH A SECOND SUBSTANCE IN FLUID FORM WITHIN A REACTION CHAMBER HAVING AN OUTLET AT THE LOWERMOST END THEREOF, COMPRISING CONTINUOUSLY DIRECTING A FIRST SUBSTANCE TO BE TREATED DOWNWARDLY INTO THE REACTION CHAMBER, CONTINUOUSLY DIRECTING A SECOND SUBSTANCE AGAINST SAID FIRST SUBSTANCE, AND CONTINUOUSLY EXHAUSTING THE UPPER END OF THE REACTION CHAMBER TO DIRECT AIR INTO THE OPENING AT THE LOWERMOST END OF THE REACTION CHAMBER AND THENCE UPWARDLY INTO THE REACTION CHAMBER AND THROUGH SAID FIRST AND SECOND SUBSTANCES TO CAUSE THE PARTICLES OF THE FIRST SUBSTANCE TO SWIRL IN A
Claim 2
Dependent Claim
105 words
A PROCESS FOR TREATING A FIRST SUBSTANCE IN POWDER, GRANULAR AND SIMILAR FORM WITH A SECOND SUBSTANCE IN FLUID FORM WITHIN A REACTION CHAMBER HAVING AN OUTLET AT THE LOWERMOST END THEREOF, COMPRISING CONTINUOUSLY DIRECTING A FIRST SUBSTANCE TO BE TREATED DOWNWARDLY INTO THE REACTION CHAMBER, CONTINUOUSLY DIRECTING A SECOND SUBSTANCE AGAINST SAID FIRST SUBSTANCE, AND CONTINUOUSLY EXHAUSTING THE UPPER END OF THE REACTION CHAMBER TO DIRECT AIR INTO THE OPENING AT THE LOWERMOST END OF THE REACTION CHAMBER AND THENCE UPWARDLY INTO THE REACTION CHAMBER AND THROUGH SAID FIRST AND SECOND SUBSTANCES TO CAUSE THE PARTICLES OF THE FIRST SUBSTANCE TO SWIRL IN A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |