US2164142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for filtering finely divided solids from fluid suspension
Assignee: Brown Co
•
Filing: 1936-06-23
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Granted: 1939-06-27
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Expires: 1956-06-23
Abstract
No abstract record available.
Inventors
- 👤 Moore Hugh Kelsea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/10; B01D39/12; B01D33/00; B01D33/06; B01D33/073; B01D33/44; B01D33/46; B01D33/466; B01D35/00; B01D35/18; Y; Y10; Y10S; Y10S29/00; Y10S29/039
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-26 | 1942-12-26 | 1943-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-26 | 1946-12-26 | 1947-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-26 | 1950-12-26 | 1951-06-27 | $7700.00 | Window Closed / Lapsed |