US3330277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multidose hypodermic injector
Assignee: Catalent Pharma Solutions Inc
•
Filing: 1964-08-17
•
Granted: 1967-07-11
•
Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Walter P Gabriels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61M5/20; A61M5/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A MULTIDOSE HYPODERMIC INJECTOR, A CYLINDER ADAPTED TO RECEIVE MEDICAMENT, A PLUNGER THEREIN OPERABLE IN ONE DIRECTION TO DRAW MEDICAMENT INTO SAID CYLINDER AND IN THE OTHER DIRECTION TO EXPEL MEDICAMENT THEREFROM, A DISCHARGE ORIFICE FOR SAID CYLINDER, A 3-WAY VALVE BETWEEN SAID CYLINDER AND SAID DISCHARGE ORIFICE, A MEDICAMENT CONTAINER COMMUNICATING WITH SAID VALVE, SAID VALVE IN ONE POSITION THEREOF ESTABLISHING COMMUNICATION BETWEEN SAID MEDICAMENT CONTAINER AND SAID CYLINDER AND IN ANOTHER POSITION THEREOF ESTABLISHING COMMUNICATION BETWEEN SAID CYLINDER AND SAID DISCHARGE ORIFICE, AND PASSAGEWAY MEANS IN SAID VALVE TO PERMIT FREE AND UNRESTRICTED ENTRY OF ATMOSPHERIC AIR TO SAID MEDICAMENT CONTAINER WHEN SAID VALVE IS IN SAID ONE POSITION AND TO POSITIVELY SEAL SAID MEDICAMENT CONTAINER AGAINST ENTRY OF ATMOSPHERIC AIR WHEN SAID VALVE IS IN SAID ANOTHER POSITION.
Claim 2
Dependent Claim
132 words
IN A MULTIDOSE HYPODERMIC INJECTOR, A CYLINDER ADAPTED TO RECEIVE MEDICAMENT, A PLUNGER THEREIN OPERABLE IN ONE DIRECTION TO DRAW MEDICAMENT INTO SAID CYLINDER AND IN THE OTHER DIRECTION TO EXPEL MEDICAMENT THEREFROM, A DISCHARGE ORIFICE FOR SAID CYLINDER, A 3-WAY VALVE BETWEEN SAID CYLINDER AND SAID DISCHARGE ORIFICE, A MEDICAMENT CONTAINER COMMUNICATING WITH SAID VALVE, SAID VALVE IN ONE POSITION THEREOF ESTABLISHING COMMUNICATION BETWEEN SAID MEDICAMENT CONTAINER AND SAID CYLINDER AND IN ANOTHER POSITION THEREOF ESTABLISHING COMMUNICATION BETWEEN SAID CYLINDER AND SAID DISCHARGE ORIFICE, AND PASSAGEWAY MEANS IN SAID VALVE TO PERMIT FREE AND UNRESTRICTED ENTRY OF ATMOSPHERIC AIR TO SAID MEDICAMENT CONTAINER WHEN SAID VALVE IS IN SAID ONE POSITION AND TO POSITIVELY SEAL SAID MEDICAMENT CONTAINER AGAINST ENTRY OF ATMOSPHERIC AIR WHEN SAID VALVE IS IN SAID ANOTHER POSITION.
References Cited (Backward Citations)
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US2079587A
Cited
US2839227A
Cited
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Cited
US3104448A
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |