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:
Feb. 13, 1979
Filed:
Jun. 30, 1977
Applicant:
Inventors:
Ashok K Chandra, Yorktown Heights, NY (US);
Chak-K Wong, Briarcliff Manor, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365-3 ;
Abstract
A bubble lattice file has plural access channels, each access channel providing access to a bubble column aligned therewith for reading and/or writing in the aligned column. At least some of the access channels are spaced from a common reference by distances which for adjacent channels have substantially constant ratio, i.e., at least some adjacent access channels are spaced in a substantially geometric progression.
Chandra, Ashok. (1979). Bubble lattice files with selected access channel positioning (U.S. Patent No. 4139904). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4139904
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile