US2824723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidizing cooling conveyor and method of heat extraction
Assignee: FLSmidth and Co AS
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Filing: 1951-07-16
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Granted: 1958-02-25
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Expires: 1971-07-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Turney
- 👤 Zubrzycki Boleslaw Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
F; F28; F28D; F28D13/00; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; F28D7/00; F28D7/08; F28D7/082; F28D7/085; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/0007; B01J2208/00079; B01J2208/00088; B01J2208/00106; B01J2208/00115; B01J2208/00132; B01J2208/00141; B01J2208/00477; B01J2208/00495; F28D21/00; F28D2021/0019; F28D2021/0045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326174A
Cited
US1370531A
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GB229258A
Cited
US1753276A
Cited
US1964256A
Cited
US2219490A
Cited
GB587774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |