Diagnostic assay device having an apparent non-signal line

Details Diagnostic assay device having an apparent non-signal line Diagnostic assay device having an apparent non-signal line

2007-01-11

2009-06-30

Nguyen, Bao-Thuy L (Department: 1641)

Chemistry: analytical and immunological testing

Involving an insoluble carrier for immobilizing immunochemicals

C436S514000, C436S169000, C436S172000, C436S175000, C436S530000, C436S533000, C436S807000, C436S170000, C436S823000, C435S823000, C435S287800, C435S287900, C435S805000, C422S051000, C422S051000, C422S051000, C422S067000, C422S067000

Reexamination Certificate

active

07553675

ABSTRACT:
A test device and method for determining the presence or absence of one or more analytes in a fluid sample, the test device including a support or member bearing a mark thereon, and a matrix or member containing a capture zone. In operation, an observation area in the test device becomes transparent, thereby allowing the user to view a mark that is present on a support that is disposed beneath the observation area. Typically, the mark on the underlying support is configured as a minus (−) sign. In the absence of analyte in the sample, the test device presents a negative result as a minus (−) signal. In the presence of analyte in the sample, however, the mark operates in concert with a perpendicular test line on the observation area to present a positive result as a plus (+) signal that is visible to the user.

REFERENCES:
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4275149 (1981-06-01), Litman et al.
patent: 4299916 (1981-11-01), Litman et al.
patent: 4366241 (1982-12-01), Tom et al.
patent: 4373932 (1983-02-01), Gribnau et al.
patent: 4587099 (1986-05-01), Rothe et al.
patent: 4632901 (1986-12-01), Valkirs et al.
patent: 4695554 (1987-09-01), O'Connell et al.
patent: 4806311 (1989-02-01), Greenquist
patent: 4806312 (1989-02-01), Greenquist
patent: 4824640 (1989-04-01), Hildenbrand et al.
patent: 4863875 (1989-09-01), Bailey et al.
patent: 4916056 (1990-04-01), Brown, III et al.
patent: 5008080 (1991-04-01), Brown, III et al.
patent: 5075078 (1991-12-01), Osikowicz et al.
patent: 5110550 (1992-05-01), Schlipfenbacher et al.
patent: 5145789 (1992-09-01), Corti et al.
patent: 5160701 (1992-11-01), Brown et al.
patent: 5223220 (1993-06-01), Fan et al.
patent: 5338513 (1994-08-01), Schlipfenbacher et al.
patent: 5401667 (1995-03-01), Koike
patent: 5591645 (1997-01-01), Rosenstein
patent: 5622871 (1997-04-01), May et al.
patent: 5656503 (1997-08-01), May et al.
patent: 5753517 (1998-05-01), Brooks et al.
patent: 5985675 (1999-11-01), Charm et al.
patent: 6046058 (2000-04-01), Sun
patent: 6165798 (2000-12-01), Brooks
patent: 6187268 (2001-02-01), Albarella et al.
patent: 6284198 (2001-09-01), Kirollos et al.
patent: 6316205 (2001-11-01), Guan et al.
patent: 7297502 (2007-11-01), Gao et al.
patent: 0249418 (1987-09-01), None
patent: 0258963 (1988-03-01), None
patent: 353500 (1989-07-01), None
patent: 0260965 (1992-11-01), None
Lindsberg, “Plastic-Molding Processes”, Chapter 10 in:Processes and Materials of Manufacture, Allyn and Bacon, Boston (1983) pp. 393-432.

Affiliated with

Also associated with

Rating

Diagnostic assay device having an apparent non-signal line does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diagnostic assay device having an apparent non-signal line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diagnostic assay device having an apparent non-signal line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4064124