Patent · US Expired

Unipolar spiral coil electrode for monitoring the electrical activity of the brain

USD318330S · kind S · design

25Cited by
13References
1Claims
0Family size

Inventors

Key dates

Filing dateOct 15, 1987
Grant dateJul 16, 1991
Priority date
Expiry dateJul 16, 2005

Classification

  • Technology area (CPC —)General

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.