US3301256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe having improved needle hub retaining sleeve means
Assignee: PHARMASEAL LAB
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Filing: 1964-03-30
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Granted: 1967-01-31
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Calvin C Cowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/34; A61M5/344; A61M5/346; A61M5/347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A HYPODERMIC SYRINGE WITH A PLASTIC BARREL HAVING AN INTEGRAL ADAPTER EXTENDING FROM A PARTIALLY CLOSED END THEREOF AND WITH AN AXIALLY SLIDEABLE STOPPER OF A PLUNGER IN THE BARREL; THE IMPROVEMENT OF AN INTEGRAL PLASTIC RETAINING SLEEVE CONCENTRIC WITH THE ADAPTER AND HAVING LOCKING MEANS ALONG A LENGTH OF AN INTERIOR SURFACE OF THE RETAINING SLEEVE, SAID RETAINING SLEEVE BEING SUFFICIENTLY FLEXIBLE TO EXPAND RADIALLY OUTWARDLY ALONG AN ENTIRE LENGTH OF SAID LOCKING MEANS FOR RELEASE OF THE INTEGRAL BARREL, ADAPTER, AND RETAINING SLEEVE FROM A MOLD; AND A SEPARATELY FORMED RIGID BAND ABOUT AN EXTERIOR SURFACE OF SAID SLEEVE AND EXTENDING ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF SAID LOCKING MEANS WHEREBY THE LOCKING MEANS IS NOT DISTORTED OUTWARDLY WHEN ATTACHED TO A MEDICAL DEVICE.
Claim 2
Dependent Claim
127 words
IN A HYPODERMIC SYRINGE WITH A PLASTIC BARREL HAVING AN INTEGRAL ADAPTER EXTENDING FROM A PARTIALLY CLOSED END THEREOF AND WITH AN AXIALLY SLIDEABLE STOPPER OF A PLUNGER IN THE BARREL; THE IMPROVEMENT OF AN INTEGRAL PLASTIC RETAINING SLEEVE CONCENTRIC WITH THE ADAPTER AND HAVING LOCKING MEANS ALONG A LENGTH OF AN INTERIOR SURFACE OF THE RETAINING SLEEVE, SAID RETAINING SLEEVE BEING SUFFICIENTLY FLEXIBLE TO EXPAND RADIALLY OUTWARDLY ALONG AN ENTIRE LENGTH OF SAID LOCKING MEANS FOR RELEASE OF THE INTEGRAL BARREL, ADAPTER, AND RETAINING SLEEVE FROM A MOLD; AND A SEPARATELY FORMED RIGID BAND ABOUT AN EXTERIOR SURFACE OF SAID SLEEVE AND EXTENDING ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF SAID LOCKING MEANS WHEREBY THE LOCKING MEANS IS NOT DISTORTED OUTWARDLY WHEN ATTACHED TO A MEDICAL DEVICE.
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |