Patent US3526481A successfully refreshed from Google Patents.
US3526481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood oxygenator
Assignee: Individual
•
Filing: 1968-01-29
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Granted: 1970-09-01
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Expires: 1988-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jeanette L Rubricius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:07
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1698; A61M1/36; A61M1/3607; A61M1/3609; A61M1/3612; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/0476; A61M39/00; A61M39/22; A61M39/227; A61M39/228; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2509
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) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |