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Patent US3484211A successfully refreshed from Google Patents.
US3484211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Membrane oxygenator
Assignee: United States Department of the Army
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Filing: 1964-12-08
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Granted: 1969-12-16
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 George Mon
- 👤 Kenneth E Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; B01D2313/00; B01D2313/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |