US3214844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for drying particulate matter
Assignee: Midland Ross Corp
•
Filing: 1961-12-11
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Granted: 1965-11-02
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Francis B Oates
- 👤 Howard E Rahm
- 👤 Gilbert A Kelley
- 👤 Emery A Danko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/14; F26B15/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A METHOD OF DRYING PARTICLES, COMPRISING THE FOLLOWING STEPS: (A) INTRODUCING THE PARTICLES TO A DRYING CHAMBER IN SUBSTANTIALLY PHYSICALLY SEPARATED GROUPS; (B) CONVEYING SAID GROUPS THROUGH SAID CHAMBER AT A SUBSTANTIALLY CONSTANT SPEED; (C) ESTABLISHING A FLOW OF A STREAM OF DRYING MEDIUM; (D) SIMULTANEOUSLY SUSPENDING SUBSTANTIALLY ALL OF THE PARTICLES IN EACH OF SAID SEPARATED GROUPS IN SAID STREAM IN SAID CHAMBER BY PASSING SAID STREAM OF
Claim 2
Independent Claim
69 words
A METHOD OF DRYING PARTICLES, COMPRISING THE FOLLOWING STEPS: (A) INTRODUCING THE PARTICLES TO A DRYING CHAMBER IN SUBSTANTIALLY PHYSICALLY SEPARATED GROUPS; (B) CONVEYING SAID GROUPS THROUGH SAID CHAMBER AT A SUBSTANTIALLY CONSTANT SPEED; (C) ESTABLISHING A FLOW OF A STREAM OF DRYING MEDIUM; (D) SIMULTANEOUSLY SUSPENDING SUBSTANTIALLY ALL OF THE PARTICLES IN EACH OF SAID SEPARATED GROUPS IN SAID STREAM IN SAID CHAMBER BY PASSING SAID STREAM OF
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US2044744A
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |