US3401692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe provided with a lateral vent and having high compression seals within the syringe bore
Assignee: MICRO TEK INSTR CORP
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Filing: 1964-06-26
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Granted: 1968-09-17
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Rano Joseph Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31525; A61M5/31531
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A NEEDLE SYRINGE WHEREIN A BODY AND A NEEDLE HAVE A COMMUNICATING BORE, AN ELONGATE PLUNGER MOUNTED TO SLIDABLY TRAVEL WITH A LOOSE SLIP FIT WITHIN SAID BORE; A VENT LINE LATERALLY COMMUNICATING WITH SAID BORE, THE VENT LINE BEING BLOCKED OFF BY THE PLUNGER AS IT COMMENCES TRAVEL TOWARD THE NEEDLE; AND SEALING MEANS ADAPTED TO COOPERATE WITH THE PLUNGER STEM TO EFFECT A HIGH PRESSURE SEAL ON BOTH SIDES OF THE LOCUS OF SAID LATERAL COMMUNICATION WITHOUT PREVENTING SLIDABLE TRAVEL OF THE PLUNGER STEM THERETHROUGH.
Claim 2
Dependent Claim
88 words
IN A NEEDLE SYRINGE WHEREIN A BODY AND A NEEDLE HAVE A COMMUNICATING BORE, AN ELONGATE PLUNGER MOUNTED TO SLIDABLY TRAVEL WITH A LOOSE SLIP FIT WITHIN SAID BORE; A VENT LINE LATERALLY COMMUNICATING WITH SAID BORE, THE VENT LINE BEING BLOCKED OFF BY THE PLUNGER AS IT COMMENCES TRAVEL TOWARD THE NEEDLE; AND SEALING MEANS ADAPTED TO COOPERATE WITH THE PLUNGER STEM TO EFFECT A HIGH PRESSURE SEAL ON BOTH SIDES OF THE LOCUS OF SAID LATERAL COMMUNICATION WITHOUT PREVENTING SLIDABLE TRAVEL OF THE PLUNGER STEM THERETHROUGH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |