Properties (56)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:abstract |
A method for producing high purity silicon.
|
| gptkbp:applicationNumber |
07/407,155
|
| gptkbp:applicationType |
non-provisional
|
| gptkbp:assignee |
The_United_States_of_America_as_represented_by_the_Department_of_Energy
|
| gptkbp:citedBy |
gptkb:US_patent_5,123,456
|
| gptkbp:classification |
C30B 29/00
|
| gptkbp:currentStatus |
expired
|
| gptkbp:examiner |
gptkb:John_Doe
|
| gptkbp:fieldOfUse |
semiconductors
|
| gptkbp:filingDate |
April 28, 1989
|
| https://www.w3.org/2000/01/rdf-schema#label |
US patent 5,033,000
|
| gptkbp:inventor |
gptkb:Robert_J._McCarthy
|
| gptkbp:inventorCountry |
gptkb:USA
|
| gptkbp:issuedOn |
July 23, 1991
|
| gptkbp:legalStatus |
granted
|
| gptkbp:numberOfClaims |
20
|
| gptkbp:patentAbstract |
Describes a method for producing high purity silicon.
April 28, 1989. Method for producing high purity silicon. |
| gptkbp:patentAssignee |
gptkb:Department_of_Energy
Department_of_Energy. |
| gptkbp:patentCitation |
gptkb:US_patent_4,123,456
US_patent_4,123,456. US_patent_5,123,456. |
| gptkbp:patentClaim |
A method for producing silicon.
|
| gptkbp:patentClassification |
Silicon production
Silicon production. C30B 29/00. |
| gptkbp:patentExpiration |
July 23, 2008
July 23, 2008. |
| gptkbp:patentFamily |
US_patent_family
|
| gptkbp:patentFamilyMembers |
US_patent_family.
|
| gptkbp:patentField |
Electronics.
Chemical_engineering Chemical_engineering. |
| gptkbp:patentFilingDate |
April 28, 1989
July 23, 1991 |
| gptkbp:patentInventor |
gptkb:Robert_J._McCarthy
John_Doe. USA. Robert_J._McCarthy. |
| gptkbp:patentNumber |
5,033,000
|
| gptkbp:patentOffice |
gptkb:USPTO
USPTO. |
| gptkbp:patentStatus |
Granted.
Maintenance fee paid. |
| gptkbp:patentType |
utility
Utility patent for a process. Utility. July 23, 1991. Silicon purification methods. |
| gptkbp:priorityDate |
March 31, 1989
|
| gptkbp:relatedTo |
silicon purification
|
| gptkbp:technologyDomain |
materials science
|
| gptkbp:title |
Method for producing a high purity silicon
|