US2414747A
Expired / Lapsed
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Method and apparatus for controlling the oxygen content of the blood of living animals
Assignee: Individual
•
Filing: 1942-07-02
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Granted: 1947-01-21
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Expires: 1962-07-02
Abstract
No abstract record available.
Inventors
- 👤 Harry M Kirschbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/6815; A61B5/6816; A61B5/145; A61B5/1455; A61B5/14551; A61B5/14552; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-01-20 | 1950-07-22 | 1951-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-01-20 | 1954-07-22 | 1955-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-01-20 | 1958-07-22 | 1959-01-21 | $7700.00 | Window Closed / Lapsed |