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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7211225 B1

PDFFull Text
Expired
Date of Patent:
May. 01, 2007

Filed:

Aug. 26, 2002

Filter devices for depositing material and density gradients of material from sample suspension

Applicants:

Gary William Ferguson, Burnaby, CA;

Marija Us-krasovec, Ljubljana, SI;

Margareta Flezar, Ljubljana, SI;

Mario Zganec, Golnik, SI;

Jaka Lavrencak, Ljubljana, SI;

Branko M. Palcic, Vancouver, CA;

Inventors:

Gary William Ferguson, Burnaby, CA;

Marija Us-Krasovec, Ljubljana, SI;

Margareta Flezar, Ljubljana, SI;

Mario Zganec, Golnik, SI;

Jaka Lavrencak, Ljubljana, SI;

Branko M. Palcic, Vancouver, CA;

Assignee:

Perceptronix Medical Inc., Vancouver, BC, CA;

Attorney:

Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.

Primary Examiner:

Jill Warden

Assistant Examiner:

Samuel P Siefke

Int. Cl.
CPC ...
G01N 30/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a simple, inexpensive apparatus for and method of capturing biological or other material from sample suspensions on a collection surface and for depositing captured material on a receiving surface, such as a microscope slide, for observation and analysis. Accordingly, cytological material may be deposited in near mono-layers for the detection of disease. In one embodiment of the present invention, density gradients of material are captured and deposited, thus providing a desired range of concentrations for examination. In another embodiment multiple depositions or multiple slides may be made from the same sample suspension. The method and apparatus to exploit this new method are both presented for various applications. The dimensions of material captured and deposited may be controlled and used in conjunction with microscope slides that confine material to specific regions of interest.

Find Patent Forward Citations

Ferguson, Gary. (2007). Filter devices for depositing material and density gradients of material from sample suspension (U.S. Patent No. 7211225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7211225

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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