Patent US3217557A successfully refreshed from Google Patents.
Patent US3348548A successfully refreshed from Google Patents.
US3348548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable electrode with stiffening stylet
Assignee: Individual
•
Filing: 1965-04-26
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Granted: 1967-10-24
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Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 William M Chardack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
IN AN ELECTRODE ADAPTED FOR PERMANENT IMPLANTATION IN AN ANIMAL BODY, A BODY OF ELECTRICALLY INSULATING MATERIAL, ELECTRICALLY CONDUCTIVE MEANS CONSISTING ENTIRELY OF SPIRALLY WOUND ELECTRICAL CONDUCTOR EXTENDING LENGTHWISE WITHIN SAID BODY, AND A REMOVABLE STYLET ALSO EXTENDING LENGTHWISE WITHIN SAID BODY, SAID STYLET IMPARTING RIGIDITY TO SAID ELECTRODE FOR INSERTION THEREOF THROUGH A VEIN INTO THE HEART.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |