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:
Jun. 26, 1990
Filed:
Sep. 23, 1988
Applicant:
Inventors:
Thomas R Jones, St. Austell, GB;
Caryl Gould, St. Austell, GB;
Alan J Brown, Tennille, GA (US);
Roger James, St. Austell, GB;
Assignee:
ECC International Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
501 80 ; 435176 ; 43524023 ; 501 68 ; 523218 ; 523219 ;
Abstract
There is provided a porous cellular material comprising a plurality of cavities each defined by a substantially spherical wall formed of a rigid intermeshing matrix of ceramic needles said wall being pierced by at least one aperture to provide access to the cavity, and the or each aperture having a diameter such that the ratio of the diameter of the aperture to the diameter of the cavity into which the aperture opens is in the range of from 0.1:1 to 1:1.