Patent US2294586A successfully refreshed from Google Patents.
Patent US3495584A successfully refreshed from Google Patents.
US3495584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead failure detection circuit for a cardiac monitor
Assignee: GE Medical Systems Information Technologies Inc
•
Filing: 1965-06-03
•
Granted: 1970-02-17
•
Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Schwalm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:23
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/276; A61B5/279; A61B5/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2709784A
Cited
US2794071A
Cited
US3144018A
Cited
US3207151A
Cited
US3316896A
Cited
US3312791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |