US2879983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cooling material in bulk
Assignee: FLSmidth and Co AS
•
Filing: 1957-06-05
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Granted: 1959-03-31
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Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 Sylvest Karl Jens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:28
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D3/00; F27D2003/0001; F27D2003/0006; F27D2003/0009; F27D9/00; F27D2009/007; F27D2009/0094; F27D2015/0246; F27D2015/026; F27D3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1322652A
Cited
US2609149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |