US 4,321,143 C2

URI: https://gptkb.org/entity/US_4%2C321%2C143_C2

GPTKB entity

Statements (71)

Predicate	Object
gptkbp:instanceOf	patent
gptkbp:abstract	A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber	US_4,321,143
gptkbp:assignee	gptkb:Acme_Corporation gptkb:New_York
gptkbp:citedBy	US_5,123,456
gptkbp:claims	10
gptkbp:class	mechanical systems
gptkbp:examiner	Jane_Smith
gptkbp:expirationDate	2002-12-15
gptkbp:fieldOfTechnology	mechanical engineering
gptkbp:filingDate	1980-12-15
gptkbp:fullText	Available on USPTO website.
https://www.w3.org/2000/01/rdf-schema#label	US 4,321,143 C2
gptkbp:internationalClassification	F03D 1/00
gptkbp:inventor	gptkb:John_Doe
gptkbp:inventorResidence	gptkb:California
gptkbp:issueDate	1982-03-30
gptkbp:issuedBy	gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus	granted
gptkbp:maintenanceFee	paid
gptkbp:patentCitation	gptkb:US_6,222,222 gptkb:US_6,555,555 gptkb:US_4,111,111 gptkb:US_4,222,222 gptkb:US_4,444,444 gptkb:US_6,333,333 gptkb:US_7,777,777 gptkb:US_7,999,999 gptkb:US_7,555,555 gptkb:US_7,666,666 gptkb:US_5,222,222 gptkb:US_7,444,444 gptkb:US_7,888,888 gptkb:US_6,444,444 gptkb:US_6,111,111 gptkb:US_7,111,111 gptkb:US_7,222,222 gptkb:US_5,555,555 gptkb:US_6,777,777 gptkb:US_4,666,666 gptkb:US_5,444,444 US 7,333,333 US 3,987,654 US 5,333,333 US 4,333,333 US_5,000,000 US_7,000,000 US_3,456,789 US_6,000,000 US_6,666,666 US_4,000,000 US_4,555,555 US_4,777,777 US_4,888,888 US_4,999,999 US_5,111,111 US_5,666,666 US_5,777,777 US_5,888,888 US_5,999,999 US_6,888,888 US_6,999,999
gptkbp:patentFamily	US_4,321,143_C2_family
gptkbp:patentType	utility patent
gptkbp:priorityDate	1980-12-15
gptkbp:relatedPatent	gptkb:US_4,321,144_C2
gptkbp:relatedTo	gptkb:US_4,321,142_C2
gptkbp:status	active
gptkbp:subclass	energy efficiency
gptkbp:title	Method for improving efficiency