Patent US3536423A successfully refreshed from Google Patents.
US3536423A
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US
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Dual fluid circulatory support system
Assignee: Thermo Fisher Scientific Inc
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Filing: 1969-02-06
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Granted: 1970-10-27
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Expires: 1989-02-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
A; A61; A61M; A61M60/00; A61M60/80; A61M60/855; A61M60/89; A61M60/894; A61M60/10; A61M60/122; A61M60/165; A61M60/178; A61M60/40; A61M60/424; A61M60/427; A61M60/126; A61M60/148; A61M60/438
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2815715A
Cited
US3434162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |