Patent US2934067A successfully refreshed from Google Patents.
US2934067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood oxygenating apparatus
Assignee: Individual
•
Filing: 1957-09-12
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Granted: 1960-04-26
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Expires: 1977-09-12
Abstract
No abstract record available.
Inventors
- 👤 Charles L Calvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:56
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/32; A61M1/322; A61M1/325; A61M1/36; A61M1/3621; A61M1/3623; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
BLOOD OXGENATING APPARATUS COMPRISING AN UPRIGHT TUBULAR MEMBE FORMING AN OXYGENATING COLUMN HAVING AN INLET, MEANS FOR INTRODUCING OXYGEN UNDER PRESSURE INTO SAID MEMBER BELOW SAID INLET, MEANS FORMING AN UPPER CHAMBER INTO WHICH THE MEMBER OPENS ABOVE SAID INLET AND HAVING AN OUTLET, A TROUGH-LIKE ELEMENT OF HELICAL SHAPE OPENING UPWARDLY THROUGHOUT ITS LENGTH SUR-
Claim 2
Dependent Claim
56 words
BLOOD OXGENATING APPARATUS COMPRISING AN UPRIGHT TUBULAR MEMBE FORMING AN OXYGENATING COLUMN HAVING AN INLET, MEANS FOR INTRODUCING OXYGEN UNDER PRESSURE INTO SAID MEMBER BELOW SAID INLET, MEANS FORMING AN UPPER CHAMBER INTO WHICH THE MEMBER OPENS ABOVE SAID INLET AND HAVING AN OUTLET, A TROUGH-LIKE ELEMENT OF HELICAL SHAPE OPENING UPWARDLY THROUGHOUT ITS LENGTH SUR-
References Cited (Backward Citations)
US1708029A
Cited
GB752969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |