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.:
Date of Patent:
Jul. 22, 1986
Filed:
Jan. 23, 1984
James T Pettingell, Escondido, CA (US);
T Charles Podvin, Poway, CA (US);
The Micromanipulator Microscope Company, Inc., Escondido, CA (US);
Abstract
Embryos and ova are manipulated at a work station that includes a microscope, a stage positioned below the objective the microscope on which an embryo- or ovum-containing sample is placed and micromanipulators and associated tools for operating on or otherwise manipulating the embryo or ovum. The specimen is illuminated with both bright-field illumination and dark-field illumination of contrasting hue to produce a composite image of the embryos or ova with the embryos or ova glowing with the dark-field hue against a bright background. The bright-field is transmitted through an aperture that is narrow to obtain a depth of field that is appropriate to three-dimensional manipulation.