Patent US2731809A successfully refreshed from Google Patents.
US2731809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hackney
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
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Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:49
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/08; A23G9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN COMBINATION WITH A REFRIGERATING UNIT HAVING REFRIGERANT CIRCULATING TUBES, AN APPARATUS FOR MAKING ICE CREAM COMPRISING A CASING SUPPORTED BY THE UNIT, A CAN MOUNTED IN THE CASING, MEANS FOR EXTENDING THE TUBES AROUND THE CAN, AN ICE CREAM CONTAINER REMOVABLY POSITIONED IN THE CAN, A VERTICAL SHAFT REMOVABLY SUPPORTED BY A CENTRAL ANNULAR UPSTANDING BEARING IN THE BOTTOM OF THE CONTAINER, A PLURALITY OF PADDLES MOUNTED ON THE SHAFT, A PAIR OF CROSS ARMS MOUNTED ON THE SHAFT, SCRAPPING VANES MOUNTED ON THE CROSS ARMS, AND MEANS TO ROTATE THE SHAFT INCLUDING A COVER, SAID COVER BEING REMOVABLY ATTACHED TO SAID VERTICAL SHAFT.
Claim 2
Dependent Claim
105 words
IN COMBINATION WITH A REFRIGERATING UNIT HAVING REFRIGERANT CIRCULATING TUBES, AN APPARATUS FOR MAKING ICE CREAM COMPRISING A CASING SUPPORTED BY THE UNIT, A CAN MOUNTED IN THE CASING, MEANS FOR EXTENDING THE TUBES AROUND THE CAN, AN ICE CREAM CONTAINER REMOVABLY POSITIONED IN THE CAN, A VERTICAL SHAFT REMOVABLY SUPPORTED BY A CENTRAL ANNULAR UPSTANDING BEARING IN THE BOTTOM OF THE CONTAINER, A PLURALITY OF PADDLES MOUNTED ON THE SHAFT, A PAIR OF CROSS ARMS MOUNTED ON THE SHAFT, SCRAPPING VANES MOUNTED ON THE CROSS ARMS, AND MEANS TO ROTATE THE SHAFT INCLUDING A COVER, SAID COVER BEING REMOVABLY ATTACHED TO SAID VERTICAL SHAFT.
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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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |