After The WHL
When the franchise joined the NHL in 1967, it retained the name "California Seals" in an effort to appeal to fans in both San Francisco and Oakland. However, after only a few months, the team had failed to attract many fans from San Francisco, and the name was changed to Oakland Seals. The name was later changed again to California Golden Seals in 1970; the franchise eventually moved to Cleveland in 1976 before it folded in 1978 through a merger with the Minnesota North Stars.
Read more about this topic: San Francisco Seals (ice Hockey)