US3311307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized beds
Assignee: Electric Reduction Company of Canada Ltd
•
Filing: 1964-12-30
•
Granted: 1967-03-28
•
Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Lopker Edwin Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:42
CPC Classifications
B; B02; B02C; B02C19/00; B01; B01F; B01F33/00; B01F33/40; B01J; B01J8/00; B01J8/18; B01J8/1872; B01J8/24; B01J8/44; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/15; Y10S423/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE METHOD FOR TREATING AGGLOMERATIVE MATERIALS IN A FLUIDIZED BED WHICH COMPRISES SUSPENDING PARTICLES OF SAID MATERIAL IN A GASEOUS STREAM AND MECHANICALLY GRINDING A PORTION OF SAID PARTICLES BETWEEN SOLID SURFACES.
Claim 2
Independent Claim
32 words
THE METHOD FOR TREATING AGGLOMERATIVE MATERIALS IN A FLUIDIZED BED WHICH COMPRISES SUSPENDING PARTICLES OF SAID MATERIAL IN A GASEOUS STREAM AND MECHANICALLY GRINDING A PORTION OF SAID PARTICLES BETWEEN SOLID SURFACES.
References Cited (Backward Citations)
US2716086A
Cited
US3246756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |