US3547104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrocardiographic monitoring apparatus and system
Assignee: MARVIN A BUFFINGTON
•
Filing: 1968-01-17
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Granted: 1970-12-15
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Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Buffington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:31
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/02416; A61B5/0245; A61B5/24; A61B5/30; A61B5/303; A61B5/307; A61B5/308; Y; Y10; Y10S; Y10S128/00; Y10S128/902
Claims Analysis
Total Claims: 0
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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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |