US3089824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulating and coating process for uniform granules
Assignee: Wisconsin Alumni Research Foundation
•
Filing: 1959-04-30
•
Granted: 1963-05-14
•
Expires: 1979-04-30
Abstract
No abstract record available.
Inventors
- 👤 Dale E Wurster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/245; A; A61; A61J; A61J3/00; A61J3/005; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/5073; B01J2/00; B01J2/16; A61J2205/00; A61J2205/20; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN THE GRANULATION ART, THE IMPROVED PROCESS OF PREPARING FREE FLOWING GRANULES OF SUBSTANTIALLY UNIFORM SIZE AND SHAPE, THE STEPS WHICH COMPRISE: SUSPENDING SMALL SOLID PARTICLES OF SUBSTANTIALLY UNIFORM SIZE AND SHAPE IN A GAS STREAM IN FLUIDIZED BED FORM AS NUCLEI FOR THE GRANULES, INTRODUCING AN ATOMIZED GRANULATING MIXTURE HAVING GRANULATING MATERIAL IN SOLUTION AND FINELY DIVIDED GRANULATING MATERIAL IN SUSPENSION IN A VOLATILE LIQUID INTO THE GAS STREAM MAINTAINING THE NUCLEI IN THE FLUIDIZED BED, AND THEN LUBRICATING THE RESULTING GRANULES WHILE IN FLUIDIZED BED FORM BY INTRODUCING AN ATOMIZED LIQUID LUBRICATING COMPOSITION INTO THE GAS STREAM MAINTAINING THE GRANULES IN THE FLUIDIZED BED.
Claim 2
Dependent Claim
106 words
IN THE GRANULATION ART, THE IMPROVED PROCESS OF PREPARING FREE FLOWING GRANULES OF SUBSTANTIALLY UNIFORM SIZE AND SHAPE, THE STEPS WHICH COMPRISE: SUSPENDING SMALL SOLID PARTICLES OF SUBSTANTIALLY UNIFORM SIZE AND SHAPE IN A GAS STREAM IN FLUIDIZED BED FORM AS NUCLEI FOR THE GRANULES, INTRODUCING AN ATOMIZED GRANULATING MIXTURE HAVING GRANULATING MATERIAL IN SOLUTION AND FINELY DIVIDED GRANULATING MATERIAL IN SUSPENSION IN A VOLATILE LIQUID INTO THE GAS STREAM MAINTAINING THE NUCLEI IN THE FLUIDIZED BED, AND THEN LUBRICATING THE RESULTING GRANULES WHILE IN FLUIDIZED BED FORM BY INTRODUCING AN ATOMIZED LIQUID LUBRICATING COMPOSITION INTO THE GAS STREAM MAINTAINING THE GRANULES IN THE FLUIDIZED BED.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |