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Patent
D404796
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Priority
Apr 09 1991
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Filed
Sep 25 1996
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Issued
Jan 26 1999
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Expiry
Jan 26 2013
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Assg.orig
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Entity
unknown
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6
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18
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n/a
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The ornamental design for a cylindrical filter element, as shown and described.
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FIG. 1 is a front view of a cylindrical filter element showing a first
embodiment of our design; and,
FIG. 2 is a front view of a cylindrical filter element showing a second
embodiment of our design.
The top and bottom views form no part of the claimed design.
Miller, John D., Williamson, Kenneth M.
| Patent |
Priority |
Assignee |
Title |
| 2426405, |
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| 2539450, |
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| 3241680, |
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| 3442392, |
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| 3566607, |
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| 4154688, |
Jan 27 1978 |
Pall Corporation |
Collapse-resistant corrugated filter element |
| 4402830, |
Jan 13 1982 |
PALL CORPOATION |
Corrugated filter element with external spiral tape support |
| 4882056, |
Apr 01 1988 |
Pall Corporation |
Fluid filter element with an overlapped wrap |
| 4902417, |
Jun 14 1988 |
Desalination Systems, Inc. |
Spiral-wound membrane cartridge with ribbed and spaced carrier layer |
| 5039413, |
Apr 01 1988 |
Pall Corporation |
Spiral wrapped fluid treatment element |
| 5252207, |
Jun 15 1988 |
PALL CORPORATION, NEW YORK |
Wrap member having openings |
| 5290457, |
Dec 29 1989 |
Seitz-Filter-Werke GmbH & Co. |
Filter element with regenerable bulk material filling and method for making same |
| 5543047, |
Nov 06 1992 |
Pall Corporation |
Filter with over-laid pleats in intimate contact |
| 629377, |
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| D349567, |
Apr 09 1991 |
Pall Corporation |
Cylindrical filter element |
| GB1005987, |
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| GB1337170, |
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| GB855068, |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 25 1996 | | Pall Corporation | (assignment on the face of the patent) | | / |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a