US5163908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fail safe composite hypodermic syringe with reversible needle and guard assembly
Assignee: Individual
•
Filing: 1990-10-29
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Granted: 1992-11-17
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Expires: 2010-10-29
Abstract
Abstract A disposable hypodermic syringe with collapsible plunger has a needle guard filled with a disinfectant-saturated media. The guard is threadably-reversibly mountable, end-for-end, on a distal end of the syringe barrel.
Inventors
- 👤 William S. Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:27
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/50; A61M5/5066; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3243; A61M5/326; A61M5/3245; A61M2005/3256; A61M2005/5073; A61M5/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A hypodermic syringe, comprising: a syringe barrel, a piston means slidable within the barrel and being permanently collapsible upon striking a distal end of the syringe barrel, a telescopic needle and guard assembly, the guard movable between an extended position entirely encompassing the needle and a contracted position exposing a pointed tip of the needle, the guard being entirely filled with a disinfectant-saturated porous media, the guard being threadably-reversibly mountable, end-for-end, on the distal end of the syringe.
Claim 2
Dependent Claim
78 words
A hypodermic syringe, comprising: a syringe barrel, a piston means slidable within the barrel and being permanently collapsible upon striking a distal end of the syringe barrel, a telescopic needle and guard assembly, the guard movable between an extended position entirely encompassing the needle and a contracted position exposing a pointed tip of the needle, the guard being entirely filled with a disinfectant-saturated porous media, the guard being threadably-reversibly mountable, end-for-end, on the distal end of the syringe.
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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) | 1995-11-17 | 1996-05-18 | 1996-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-17 | 2000-05-18 | 2000-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-17 | 2004-05-18 | 2004-11-17 | $7700.00 | Window Closed / Lapsed |