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Applicator for use in deposition of fluid samples onto a substrate surface

  • US 6,475,440 B1
  • Filed: 08/25/1999
  • Issued: 11/05/2002
  • Est. Priority Date: 09/16/1998
  • Status: Expired due to Fees
First Claim
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1. An applicator device for depositing a fluid sample onto the surface of a substrate, said device comprising:

  • an elongate member with a first end and a second end, wherein said first end is characterized by the presence of a substantially planar surface having a diameter ranging from about 0.1 mm to 2.0 mm and a solid conical protuberance arising therefrom having a height that ranges from about 0.05 to about 0.2 mm and a diameter that is at least 5 fold less than the diameter of said substantially planar surface.

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