Patent US3153496A successfully refreshed from Google Patents.
US3153496A
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US
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Syringe
Assignee: Schneider Electric Buildings Americas Inc
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Filing: 1961-11-20
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Granted: 1964-10-20
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Expires: 1981-11-20
Abstract
No abstract record available.
Inventors
- 👤 Royce E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L3/0217; B01L3/022; G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/16; G01N30/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
IN A HYPODERMIC-TYPE SYRINGE, THE COMBINATION COMPRISING A BARREL HAVING A SMALL DIAMETER BORE AND AN ADJACENT LARGER DIAMETER BORE LONGITUDINALLY DISPOSED THEREIN, AND A SHOULDER DEFINED BETWEEN THEM, A HOLLOW NEEDLE SECURED IN SAID BARREL ADJACENT TO AND IN AXIAL ALIGNMENT WITH ONE END OF SAID SMALL BORE, AN ACTUATOR MEMBER HAVING A HEAD, MEANS DEFINING A SMALL DIAMETER PLUNGER EXTENDING AXIALLY THEREFROM, AND A LARGE DIAMETER CYLINDRICAL GUIDE SECTION COAXIALLY DISPOSED RADIALLY OUTWARDLY OF A PORTION OF SAID PLUNGER ADJACENT SAID HEAD, SAID PLUNGER HAVING LIMITED FREEDOM TO FLEX WITHIN SAID GUIDE SECTION, SAID PLUNGER AND SAID GUIDE SECTION BEING OF SLIGHTLY LESSER DIAMETER THAN SAID SMALL AND LARGE BORES, RESPECTIVELY, SAID GUIDE SECTION BEING ADAPTED TO DEFINE, IN COOPERATION WITH SAID SHOULDER, A LIMIT POSITION OF SAID ACTUATOR IN SAID BARREL WHEN SAID ACTUATOR IS RECEIVED THEREIN.
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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |