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:
Nov. 10, 1981
Filed:
May. 23, 1979
James E Parker, Long Beach, CA (US);
ICL/Scientific, Fountain Valley, CA (US);
Abstract
An improved transparent slide, and method of manufacture, the slide having a plurality of covered chambers defined between generally parallel and uniformly spaced sidewalls integral to the slide and having a channeled configuration for inducing a liquid specimen into the chambers, wherein the size of the chamber and the thickness of the side walls is significantly reduced from prior structures. An improved molding method adapted for producing the thinner slide sidewalls, the method including the use of a plurality of injection ports for delivering molten plastic to a mold and locating of a plurality of symmetrical dams in the mold that act to uniformly distribute and improve the flow of molten plastic near chamber forming portions of the mold. In accordance with one embodiment of the present invention, the upper surface of the slide has a frosted surface portion suitable for writing upon and has a plurality of small protrusions from the surface for ensuring adequate spacing from adjacent slides, when multiple slides are packaged together.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile