US 4,000,072 A

GPTKB entity

Statements (70)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite structure with improved properties.
gptkbp:applicationNumber 05/575,198
gptkbp:applicationPublication gptkb:US_1976/0000001_A1
gptkbp:applicationType Non-provisional
gptkbp:assignee gptkb:McDonald_Engineering_Company
gptkbp:citedBy gptkb:US_4,123,456_A
gptkbp:claims 10 claims
gptkbp:class 428/32
gptkbp:examiner gptkb:John_Smith
gptkbp:fieldOfInvention Composite materials
gptkbp:filingDate March 1, 1975
https://www.w3.org/2000/01/rdf-schema#label US 4,000,072 A
gptkbp:internationalClassification B32B 5/26
gptkbp:inventor gptkb:Robert_H._McDonald
gptkbp:inventorCountry gptkb:United_States
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate December 28, 1976
gptkbp:issuedOn December 28, 1976
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Not paid
gptkbp:patentAbstract Describes a method for creating composite materials.
Filed in 1975.
A method for producing a composite structure with improved properties.
gptkbp:patentAssignee United_States.
McDonald_Engineering_Company.
gptkbp:patentCitation Cited by 10 other patents.
Cited by multiple subsequent patents.
US_3,500,000_A
gptkbp:patentClassification Composite materials
B32B 5/26.
gptkbp:patentDescription Describes a method for creating composite materials.
gptkbp:patentExpiration 1996
1996.
gptkbp:patentFamily gptkb:McDonald_patent_family
Method for producing composite structures.
gptkbp:patentFamilyMembers 5 family members.
Includes_US_3,999,999_A.
gptkbp:patentField Engineering
Composite materials.
Materials science.
Engineering and materials science.
Composite materials and engineering.
gptkbp:patentFilingDate December 28, 1976.
March 1, 1975.
gptkbp:patentInventor American.
Cited by 10 patents.
Part of a family of 5 patents.
United_States.
Robert_H._McDonald.
Robert_H._McDonald,_California.
gptkbp:patentLength 20 years
gptkbp:patentMaintenanceFee Not paid.
gptkbp:patentNumber 4,000,072
gptkbp:patentOwner gptkb:McDonald_Engineering_Company
gptkbp:patentStatus Expired due to non-payment of maintenance fees.
Expired due to non-payment.
Filed.
Lapsed.
Lapsed due to maintenance fee non-payment.
gptkbp:patentType Utility patent
Filed as a non-provisional application.
Non-provisional.
Utility patent for a method.
Filed under application number 05/575,198.
gptkbp:priorityDate April 30, 1975
gptkbp:relatedPatent US 3,999,999 A
gptkbp:status Expired
gptkbp:subclass 428/35
gptkbp:title Method of making a composite structure