US3140716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger for blood
Assignee: Baxter International Inc
•
Filing: 1961-06-26
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Granted: 1964-07-14
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Robert R Harrison
- 👤 Jr Leonard F Waldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:29
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/44; A61M2205/00; A61M2205/36; A61M2205/3606; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US363423A
Cited
US2548359A
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US2606005A
Cited
FR976750A
Cited
US2595328A
Cited
US2876769A
Cited
FR1184028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |