US 04,567,921 B2

URI: https://gptkb.org/entity/US_04%2C567%2C921_B2

GPTKB entity

Statements (67)

Predicate	Object
gptkbp:instanceOf	patent
gptkbp:abstract	A device for improving efficiency.
gptkbp:applicationNumber	06/740,123
gptkbp:applicationType	non-provisional
gptkbp:assignee	gptkb:Acme_Corporation
gptkbp:assigneeCountry	gptkb:New_York
gptkbp:citedBy	gptkb:US_05,678,910_B2
gptkbp:claims	20
gptkbp:class	mechanical device
gptkbp:examiner	Jane_Smith
gptkbp:expirationDate	2006-02-25
gptkbp:fieldOfInvention	mechanical engineering
gptkbp:filingDate	1985-05-30
https://www.w3.org/2000/01/rdf-schema#label	US 04,567,921 B2
gptkbp:internationalClassification	F03D 1/00
gptkbp:inventor	gptkb:John_Doe
gptkbp:inventorResidence	gptkb:California
gptkbp:issueDate	1986-02-25
gptkbp:issuedBy	gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus	granted
gptkbp:maintenanceFee	paid
gptkbp:patentCitation	gptkb:US_04,567,943_B2 gptkb:US_04,567,924_B2 gptkb:US_04,567,936_B2 gptkb:US_04,567,928_B2 gptkb:US_04,567,948_B2 gptkb:US_04,567,934_B2 gptkb:US_04,567,938_B2 gptkb:US_04,567,960_B2 gptkb:US_04,567,949_B2 gptkb:US_04,567,942_B2 gptkb:US_04,567,955_B2 gptkb:US_04,567,939_B2 gptkb:US_04,567,930_B2 gptkb:US_04,567,932_B2 gptkb:US_04,567,927_B2 gptkb:US_04,567,945_B2 gptkb:US_04,567,926_B2 gptkb:US_04,567,952_B2 gptkb:US_04,567,958_B2 gptkb:US_04,567,931_B2 gptkb:US_04,567,959_B2 gptkb:US_04,567,929_B2 gptkb:US_04,567,944_B2 gptkb:US_04,567,956_B2 gptkb:US_04,567,954_B2 gptkb:US_04,567,941_B2 gptkb:US_04,567,957_B2 gptkb:US_04,567,923_B2 gptkb:US_04,567,947_B2 gptkb:US_04,567,925_B2 gptkb:US_04,567,937_B2 gptkb:US_04,567,922_B2 gptkb:US_04,567,920_B2 gptkb:US_04,567,953_B2 gptkb:US_04,567,946_B2 gptkb:US_04,567,940_B2 gptkb:US_04,567,951_B2 gptkb:US_04,567,933_B2 gptkb:US_04,567,935_B2 gptkb:US_04,567,950_B2
gptkbp:patentFamily	US_04,567,921_B2_family
gptkbp:patentType	utility
gptkbp:priorityDate	1984-05-30
gptkbp:relatedTo	gptkb:US_04,567,920_B2
gptkbp:status	active
gptkbp:subclass	energy efficiency