US3373743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable hypodermic syringe
Assignee: Dentists Supply Company of New York
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Filing: 1963-11-29
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Granted: 1968-03-19
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Jacob A Saffir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/285; A61M5/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A DISPOSABLE HYPODERMIC SYRINGE COMPRISING AN ELONGATED TUBULAR BODY OF SUBSTANTIALLY UNIFORM CROSSSECTIONAL SHAPE, DEFINED BY AN UNINTERRUPTED CYLINDRICAL SURFACE BETWEEN THE OPPOSITE ENDS THEREOF, ONE END OF SAID BODY HAVING AN END WALL FIXED THERETO AND PROVIDED WITH PASSAGE MEANS THROUGH WHICH CONTENTS OF SAID BODY MAY BE DISCHARGED AND ASPIRATED AND TO WHICH A HYPODERMIC NEEDLE IS ATTACHABLE, SAID END WALL HAVING RADIAL PROJECTIONS WHICH SLOPE UPWARDS FROM THE PASSAGE MEANS EXTEND TO THE INSIDE WALL OF THE TUBULAR BODY THE OPPOSITE END OF SAID BODY BEING OPEN AND RECEIVING A PISTON WHICH IS SLIDABLY MOUNTED WITHIN SAID BODY, AND A ROD CONNECTED TO SAID PISTON AND EXTENDING THROUGH SAID OPEN END OF SAID BODY TO EFFECT RECIPROCATION OF SAID PISTON IN OPPOSITE DIRECTIONS WITHIN SAID BODY, IN COMBINATION WITH AN IMPERFORATE CLOSURE
Claim 2
Dependent Claim
135 words
A DISPOSABLE HYPODERMIC SYRINGE COMPRISING AN ELONGATED TUBULAR BODY OF SUBSTANTIALLY UNIFORM CROSSSECTIONAL SHAPE, DEFINED BY AN UNINTERRUPTED CYLINDRICAL SURFACE BETWEEN THE OPPOSITE ENDS THEREOF, ONE END OF SAID BODY HAVING AN END WALL FIXED THERETO AND PROVIDED WITH PASSAGE MEANS THROUGH WHICH CONTENTS OF SAID BODY MAY BE DISCHARGED AND ASPIRATED AND TO WHICH A HYPODERMIC NEEDLE IS ATTACHABLE, SAID END WALL HAVING RADIAL PROJECTIONS WHICH SLOPE UPWARDS FROM THE PASSAGE MEANS EXTEND TO THE INSIDE WALL OF THE TUBULAR BODY THE OPPOSITE END OF SAID BODY BEING OPEN AND RECEIVING A PISTON WHICH IS SLIDABLY MOUNTED WITHIN SAID BODY, AND A ROD CONNECTED TO SAID PISTON AND EXTENDING THROUGH SAID OPEN END OF SAID BODY TO EFFECT RECIPROCATION OF SAID PISTON IN OPPOSITE DIRECTIONS WITHIN SAID BODY, IN COMBINATION WITH AN IMPERFORATE CLOSURE
References Cited (Backward Citations)
US2607341A
Cited
US3075525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |