Patent US3204633A successfully refreshed from Google Patents.
US3204633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric automatic shut-off fluid valve for infusion apparatus
Assignee: Sterilon Corp
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Filing: 1961-07-20
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Granted: 1965-09-07
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Expires: 1981-07-20
Abstract
No abstract record available.
Inventors
- 👤 Peter C Hofstra
- 👤 Harvey J Engelsher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
APPARATUS FOR ADMINISTERING INTRAVENOUS FLUID BY GRAVITY FROM A FLUID SOURCE, COMPRISING FIRST GENERALLY-VERTICAL CONDUIT MEANS ADAPTED FOR CONNECTION AT ITS UPPER END WITH SAID FLUID SOURCE; A HYPODERMIC NEEDLE ASSEMBLY ADAPTED FOR ARRANGEMENT AT AN ELEVATION LOWER THAN THAT OF THE FLUID SOURCE; SECOND GENERALLY VERTICAL CONDUIT MEANS CONNECTED AT ITS LOWER END WITH SAID NEEDLE ASSEMBLY;
Claim 2
Dependent Claim
58 words
APPARATUS FOR ADMINISTERING INTRAVENOUS FLUID BY GRAVITY FROM A FLUID SOURCE, COMPRISING FIRST GENERALLY-VERTICAL CONDUIT MEANS ADAPTED FOR CONNECTION AT ITS UPPER END WITH SAID FLUID SOURCE; A HYPODERMIC NEEDLE ASSEMBLY ADAPTED FOR ARRANGEMENT AT AN ELEVATION LOWER THAN THAT OF THE FLUID SOURCE; SECOND GENERALLY VERTICAL CONDUIT MEANS CONNECTED AT ITS LOWER END WITH SAID NEEDLE ASSEMBLY;
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |