US3669110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressible biomedical electrode
Assignee: National Aeronautics and Space Administration
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Filing: 1970-11-05
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Granted: 1972-06-13
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Expires: 1990-11-05
Abstract
Abstract A preferred embodiment of an electrode which incorporates a silicone rubber sponge which is immediately adjacent to a chlorided silver disk carried in a silicone rubber base, the electrode being covered with a thin leak-proof vinyl coating for storing electrolyte solution from the point of manufacture. The sponge rubber holds the electrolyte until it is required at the time of usage. A force on the exterior causes the electrolyte to moisten the skin to provide good ohmic contact with the subject.
Inventors
- 👤 James D Frost Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/321; A61B5/324; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
The compressible biomedical electrode assembly set forth in claim 1 wherein a cylindrical tab extends from the apex of the conically shaped sponge material, said tab forming a filler for the electrolyte and a indicia for locating the portion of the housing to be removed to expose the sponge for wetted contact.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |