| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f88f84fc279fe5d0b9b5ec3c88c2e2b2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B90-39 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F6-148 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B19-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F6-14 |
| filingDate |
1968-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51e1b54eb27194bfdf43fa9193d022d3 |
| publicationDate |
1972-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3633574-A |
| titleOfInvention |
Intrauterine contraceptive device |
| abstract |
An intrauterine contraceptive device comprises an outer ring formed with a central membrane to prevent tissue obtrusion and control the deflection characteristics of the device, and lateral spurs slanted in a retrograde direction to impede expulsion through the cervical os. The device is molded of a plastic material and may be coated with a metal film as a barrier against calcium deposits and provide radio-opacity. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3934580-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3809076-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3789838-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006106180-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3935860-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11628088-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3881475-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2006231212-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3982892-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4144317-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009056723-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3805777-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107174321-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3834378-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3903880-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3683906-A |
| priorityDate |
1968-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |