Patent US3448041A successfully refreshed from Google Patents.
US3448041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating blood preliminary to its use in transfusions
Assignee: PIONEER VIGGO Inc
•
Filing: 1965-06-14
•
Granted: 1969-06-03
•
Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Roy L Swank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3679; A61K; A61K35/00; A61K35/12; A61K35/14; A61M5/00; A61M5/14; A61M5/165; A61M2202/00; A61M2202/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US197368A
Cited
US2251964A
Cited
US2286231A
Cited
GB588224A
Cited
US2644586A
Cited
US2660167A
Cited
US2676128A
Cited
US2720278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |