| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_790c3ed38ad6fee7edb33526bc0ba8cb |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B34-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B34-06 |
| filingDate |
1947-04-04^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1953-07-07^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a221188f4686085937b670693652a31 |
| publicationDate |
1953-07-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2644526-A |
| titleOfInvention |
Casing collar for cementing wells |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4479545-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11247369-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4258793-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3131767-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2508591-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10350817-B2 |
| priorityDate |
1947-04-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |