Patent US4649091A successfully refreshed from Google Patents.
Patent US3259375A successfully refreshed from Google Patents.
US3259375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounding and blending apparatus
Assignee: Individual
•
Filing: 1964-06-23
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Granted: 1966-07-05
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Sr Walter J Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:34
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/80; B01F25/82; B01F25/822
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
IN COMBINATION, A WEIGHT HOPPER HAVING A LOWER INWARDLY TAPERING SECTION TERMINATING IN AN OPENING AND A PLURALITY OF COMPARTMENTS THEREWITHIN TERMINATING SHORT OF SAID OPENING FOR SEQUENTIALLY RECEIVING GRANULAR MATERAIL SUPPLIED TO SAID HOPPER, MEANS FOR SIMULTANEOUSLY DISCHARGING SAID GRANULAR MATERIAL FROM SAID COMPARTMENTS INTO SAID INWARDLY TAPERING SECTION FOR MIXING BY GRAVITY FLOW, AND MEANS POSITIONED ACROSS SAID INWARDLY TAPERING SECTION FOR SPLITTING THE FLOW OF SAID DISCHARGING GRANULAR MATERIAL BEFORE REACHING SAID OPENING, AND CONVEYOR MEANS POSITIONED IN SAID OPENING FOR RECEIVING THE DISCHARGED AND SPLIT OF SAID GRANULAR MATERIAL.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |