US3328255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating blood
Assignee: Elliot Laboratories Inc
•
Filing: 1963-12-13
•
Granted: 1967-06-27
•
Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 John C Ilg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:43
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02; A61M1/029; A61J; A61J1/00; A61J1/05; A61J1/10; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83; Y10S604/00; Y10S604/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF WASHING BLOOD CELLS IN A CLOSED SYSTEM COMPRISING WASHING AT A PH BELOW ABOUT 7.0 SAID CELLS IN A BAG HAVING AT LEAST ONE FLEXIBLE WALL WITH A SUFFICIENT VOLUME OF A SUBSTANTIALLY NON-ELECTROLYTE WASHANT TO REDUCE THE ELECTROLYTE CONCENTRATION TO A CONCENTRATION AT WHICH THE BLOOD CELLS ARE PRECIPITATED TO FORM A PRECIPITATED BLOOD CELL STRTA AND A SPENT WASHANT STRATA AND SEPARATING THE SPENT WASHANT STRATA FROM THE PRECIPITATED RED CELL STRATA BY FLEXING SAID WALL.
Claim 2
Independent Claim
81 words
A METHOD OF WASHING BLOOD CELLS IN A CLOSED SYSTEM COMPRISING WASHING AT A PH BELOW ABOUT 7.0 SAID CELLS IN A BAG HAVING AT LEAST ONE FLEXIBLE WALL WITH A SUFFICIENT VOLUME OF A SUBSTANTIALLY NON-ELECTROLYTE WASHANT TO REDUCE THE ELECTROLYTE CONCENTRATION TO A CONCENTRATION AT WHICH THE BLOOD CELLS ARE PRECIPITATED TO FORM A PRECIPITATED BLOOD CELL STRTA AND A SPENT WASHANT STRATA AND SEPARATING THE SPENT WASHANT STRATA FROM THE PRECIPITATED RED CELL STRATA BY FLEXING SAID WALL.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |