US2696818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined filtering and drop-counting device for blood transfusion administering systems
Assignee: STICHTING TOT INSTANDHOUDING V
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Filing: 1953-09-01
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Granted: 1954-12-14
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Expires: 1973-09-01
Abstract
No abstract record available.
Inventors
- 👤 Johannes Jacobus Van Loghem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/165; A61M5/1411; A61M5/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |