US3792978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope assembly for spool type oxygenator
Assignee: SCI MED LIFE SYST Inc
•
Filing: 1972-05-30
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Granted: 1974-02-19
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Expires: 1992-05-30
Abstract
Abstract The invention relates to an envelope assembly for a spool wound artificial lung. The envelope assembly is characterized by having unobtrusive tube attachments which allow the envelope to be wound smoothly and evenly about the spool of the oxygenator.
Inventors
- 👤 F Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:55
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/10; B01D63/103; B01D2313/00; B01D2313/10; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
An envelope assembly according to claim 1 including a folded bib member having folded parts and an opening along the fold line thereof, said bib opening being in surrounding relation to said sleeve and said folded parts being in straddling relation to said screen.
References Cited (Backward Citations)
US3489647A
Cited
US3567028A
Cited
US3508662A
Cited
US3741395A
Cited
US3729377A
Cited
US3738813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |