US3268442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating immisicible liquids and apparatus
Assignee: Pall Corp
•
Filing: 1964-05-08
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Granted: 1966-08-23
•
Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 David B Pall
- 👤 Krakauer Sidney
- 👤 Seibert Chesterfield Franklin
- 👤 Marcel G Verrando
- 👤 Cyril A Keedwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:53
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D17/08; B01D17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR COALESCING SMALL DROPLETS OF IMMISCIBLE LIQUID IN A SUSPENDING LIQUID MEDIUM, COMPRISING FORCING THE DROPLETS THROUGH THE PASSAGES OF A COMPACTED COALESCER ELEMENT FORMED OF COMPACTED LAYERS OF FIBERS HAVING DIAMETERS WITHIN THE RANGE FROM ABOUT 0.25 TO ABOUT 5 MICRONS, AND DEFINING THEREBETWEEN PASSAGES HAVING DIAMETERS, WITHIN THE RANGE FROM ABOUT 0.01 TO ABOUT 5 MICRONS, AND LESS THAN THAT OF THE DROPLETS.
Claim 2
Dependent Claim
67 words
A PROCESS FOR COALESCING SMALL DROPLETS OF IMMISCIBLE LIQUID IN A SUSPENDING LIQUID MEDIUM, COMPRISING FORCING THE DROPLETS THROUGH THE PASSAGES OF A COMPACTED COALESCER ELEMENT FORMED OF COMPACTED LAYERS OF FIBERS HAVING DIAMETERS WITHIN THE RANGE FROM ABOUT 0.25 TO ABOUT 5 MICRONS, AND DEFINING THEREBETWEEN PASSAGES HAVING DIAMETERS, WITHIN THE RANGE FROM ABOUT 0.01 TO ABOUT 5 MICRONS, AND LESS THAN THAT OF THE DROPLETS.
References Cited (Backward Citations)
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |