US2835252A
Expired / Lapsed
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Monitor apparatus for blood transfusions
Assignee: JAMES B MCFADYEN
•
Filing: 1955-06-06
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Granted: 1958-05-20
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Mauchel Sydney Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:45
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/28; A61M39/281; A61M5/00; A61M5/14; A61M5/168; A61M5/16886; A61M5/1689; G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; Y; Y10; Y10S; Y10S128/00; Y10S128/13; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/7722; Y10T137/7723; Y10T137/7736; Y10T137/7758
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |