US3369249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrocardiograph
Assignee: HALLICRAFTERS CO
•
Filing: 1965-08-31
•
Granted: 1968-02-13
•
Expires: 1985-08-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Argy
- 👤 Richard J Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:32
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; A61B5/338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2638401A
Cited
US1060761A
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US2078763A
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US2439640A
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US2502419A
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US2478329A
Cited
US2645550A
Cited
US2687935A
Cited
US2684278A
Cited
US2842421A
Cited
US3283335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |