US2863451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood transfusion assembly
Assignee: Individual
•
Filing: 1955-01-10
•
Granted: 1958-12-09
•
Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Sr Courtland H Barr
- 👤 Jr Courtland H Barr
- 👤 John W Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:07
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; A61M2005/1623; A61M2205/00; A61M2205/19; A61M2205/192; A61M2205/195
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US806746A
Cited
US1121690A
Cited
US2208550A
Cited
GB528471A
Cited
US2512569A
Cited
US2630803A
Cited
US2689563A
Cited
US2707953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |