US3340871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parenteral liquid administration apparatus
Assignee: Don Baxter Inc
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Filing: 1965-10-22
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Granted: 1967-09-12
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 David A Jellies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/168; A61M5/16886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PARENTERAL ADMINISTRATION SYSTEM COMPRISING IN SERIES A PARENTERAL-LIQUID CONTAINER, CONDUIT MEANS, VENOUS NEEDLE MEANS, AND LIQUID-REGULATOR MEANS INTERMEDIATELY OF SAID CONDUIT MEANS, THE IMPROVEMENT IN SAID LIQUID-REGULATOR MEANS COMPRISING: AN ENLARGED CHAMBER HAVING AN INLET AND OUTLET RESPECTIVELY CONNECTED TO SAID CONDUIT MEANS, SAID CHAMBER INCLUDING THEREIN A CUPLIKE, VARIABLE HEAD RESERVOIR EXTENDING LONGITUDINALLY BETWEEN SAID INLET AND OUTLET AND HAVING AN ENLARGED OPEN UPPER END AND A REDUCED-AREA LOWER OPENING, MEANS SUPPORTING SAID RESERVOIR IN SAID CHAMBER AND PERMITTING COMMUNICATION BETWEEN THE LOWER AND UPPER ENDS OF SAID RESERVOIR TO PERMIT AIR CUSHION TO BE FORMED THEREAT; AND
Claim 2
Dependent Claim
100 words
A PARENTERAL ADMINISTRATION SYSTEM COMPRISING IN SERIES A PARENTERAL-LIQUID CONTAINER, CONDUIT MEANS, VENOUS NEEDLE MEANS, AND LIQUID-REGULATOR MEANS INTERMEDIATELY OF SAID CONDUIT MEANS, THE IMPROVEMENT IN SAID LIQUID-REGULATOR MEANS COMPRISING: AN ENLARGED CHAMBER HAVING AN INLET AND OUTLET RESPECTIVELY CONNECTED TO SAID CONDUIT MEANS, SAID CHAMBER INCLUDING THEREIN A CUPLIKE, VARIABLE HEAD RESERVOIR EXTENDING LONGITUDINALLY BETWEEN SAID INLET AND OUTLET AND HAVING AN ENLARGED OPEN UPPER END AND A REDUCED-AREA LOWER OPENING, MEANS SUPPORTING SAID RESERVOIR IN SAID CHAMBER AND PERMITTING COMMUNICATION BETWEEN THE LOWER AND UPPER ENDS OF SAID RESERVOIR TO PERMIT AIR CUSHION TO BE FORMED THEREAT; AND
References Cited (Backward Citations)
US2479786A
Cited
US3034504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |