US2873049A
Expired / Lapsed
US
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Process and apparatus for distributing a fluidized solid material
Assignee: Schafer Flottmann & Co GmbH
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Filing: 1956-05-21
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Granted: 1959-02-10
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Expires: 1976-05-21
Abstract
No abstract record available.
Inventors
- 👤 Schafer Fritz
- 👤 Brockmann Alfons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:23
CPC Classifications
F; F42; F42B; F42B33/00; F42B33/02; F42B33/0264; B; B01; B01F; B01F31/00; B01F31/44; B01F31/441; B01F31/56; B01F23/00; B01F23/60; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904; Y10S264/00; Y10S264/51; Y10S425/00; Y10S425/02
Claims Analysis
Total Claims: 0
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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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |