|
gptkbp:instanceOf
|
patent
|
|
gptkbp:abstract
|
A method and apparatus for producing a high frequency signal.
|
|
gptkbp:applicationDate
|
1949-06-30
|
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gptkbp:applicationNumber
|
Serial No. 622,198
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|
gptkbp:applicationStatus
|
abandoned
|
|
gptkbp:assignee
|
gptkb:McGowan_Engineering_Company
|
|
gptkbp:citedBy
|
US_3,000,000
|
|
gptkbp:class
|
331/94
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:examiner
|
gptkb:John_Doe
|
|
gptkbp:field
|
electrical engineering
|
|
gptkbp:fieldOfUse
|
telecommunications
|
|
gptkbp:filingDate
|
1949-06-30
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
US 2,555,670
|
|
gptkbp:inventiveStep
|
yes
|
|
gptkbp:inventor
|
gptkb:William_H._McGowan
high frequency signal generation
|
|
gptkbp:issuedBy
|
gptkb:William_H._McGowan
|
|
gptkbp:issuedOn
|
1951-05-29
|
|
gptkbp:legalStatus
|
lapsed
|
|
gptkbp:numberOfClaims
|
10
|
|
gptkbp:patentCitation
|
US_2,500,000
|
|
gptkbp:patentClassification
|
H04B
H04B1/00
|
|
gptkbp:patentDescription
|
active
Year of fee payment.
|
|
gptkbp:patentExpiration
|
1965
1971-05-29
|
|
gptkbp:patentFamily
|
McGowan patents
|
|
gptkbp:patentFamilyMembers
|
gptkb:US_2,555,671
|
|
gptkbp:patentField
|
signal processing
|
|
gptkbp:patentLength
|
20 years
|
|
gptkbp:patentNumber
|
2,555,670
|
|
gptkbp:patentOffice
|
gptkb:USPTO
|
|
gptkbp:patentStatus
|
active
1965-05-29
Maintenance fee paid.
fee payment
Fee payment.
maintenance fee paid
FPAY
|
|
gptkbp:patentType
|
Utility Patent
utility
|
|
gptkbp:priorityDate
|
1946-12-30
|
|
gptkbp:publications
|
granted patent
|
|
gptkbp:relatedPatent
|
gptkb:US_2,555,671
|
|
gptkbp:relatedTo
|
high frequency oscillators
|
|
gptkbp:status
|
expired
|
|
gptkbp:subclass
|
331/95
|
|
gptkbp:technology
|
electronic circuits
|
|
gptkbp:title
|
Method of and apparatus for producing a high frequency signal
|