US2569227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transferring powdered material
Assignee: Denison Engineering Co
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Filing: 1947-12-06
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Granted: 1951-09-25
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Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Willard K Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:07
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B30B15/304
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
APPARATUS FOR TRNASFERRING PULVERULENT MATERIAL FROM A LOADING POINT TO A DISCHARGE POINT COMPRISING A PLATE-LIKE SUPPORT; A MEMBER HAVING SIDE AND END PIECES CONNECTED TO FORM A COMPARTMENT, SAID MEMBER BEING DISPOSED ON SAID SUPPORT FOR MOVEMENT BETWEEN LOADING AND DISCHARGE POINTS; AN AGITATOR HAVING LONGITUDINALLY EXTENDING SIDE BARS AND SPACED BARS EXTENDING TRANSVERSELY THEREBETWEEN, SAID AGITATOR BEING MOVABLE FOR A LIMITED DISTANCE IN SAID COMPARTMENT; A POWER CYLINDER OPERATIVE TO RECIPROCATE
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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |