US 2233450

GPTKB entity

Statements (53)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract This invention relates to electric light fixtures.
gptkbp:applicationNumber US_2233450_A
gptkbp:applicationPublication 1940-01-15
gptkbp:applicationStatus Granted
gptkbp:applicationType Non-Provisional
gptkbp:assignee Doe Industries
gptkbp:citedBy US_1234567
gptkbp:claims 10
gptkbp:classification H01H 9/00
gptkbp:description The invention provides a new and improved electric light fixture.
gptkbp:drawings Figure 1, Figure 2
gptkbp:examiner gptkb:James_Smith
gptkbp:fieldOfInvention Electrical Engineering
gptkbp:filingDate 1940-01-15
https://www.w3.org/2000/01/rdf-schema#label US 2233450
gptkbp:internationalClassification H01H 9/00
gptkbp:inventor gptkb:John_Doe
[email protected]
gptkbp:inventorResidence gptkb:New_York,_NY
American
gptkbp:issueDate 1941-03-04
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Paid
gptkbp:nonPatentCitation Journal_of_Electrical_Engineering,_1940.
gptkbp:patentAbstract gptkb:Washington,_D.C.
An electric light fixture with improved design.
gptkbp:patentCitation US_1234567,_US_7654321
gptkbp:patentClassification H01H
gptkbp:patentExpiration 1961-03-04
gptkbp:patentFamily US_2233450,_US_2233449
gptkbp:patentField Lighting_Technology
gptkbp:patentLink https://patents.google.com/patent/US2233450A/en
gptkbp:patentNumber 2233450
US_Patent
gptkbp:patentOffice gptkb:United_States_Patent_and_Trademark_Office
gptkbp:patentOwner gptkb:Doe_Industries,_Inc.
gptkbp:patentStatus 1956-03-04
Expired due to non-payment of maintenance fees.
Lapsed due to non-payment.
Not paid.
Maintenance Fee Reminder
Maintenance fee reminder mailed.
Patent expired.
Failure to pay maintenance fee.
Patent lapsed.
gptkbp:patentType Utility Patent
A utility patent for an invention.
gptkbp:priorityDate 1939-01-15
gptkbp:relatedTo gptkb:US_2233449
gptkbp:status Expired
gptkbp:subclass H01H 9/10
gptkbp:title Improvement in Electric Light Fixtures