About: http://webisa.webdatacommons.org/197654433

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Finally, for Canada and some other countries, annual government maintenance fees must be paid to prevent an application or issued patent from expiring prematurely .
http://www.w3.org/ns/prov#wasQuotedFrom	patentscanada.com