US2452644A
Expired / Lapsed
US
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Apparatus for intravenous administration of liquids
Assignee: Abbott Laboratories
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Filing: 1946-10-05
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Granted: 1948-11-02
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Expires: 1966-10-05
Abstract
No abstract record available.
Inventors
- 👤 Mack R Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:59
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; A61M2005/1623
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) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |