Patent US3588985A successfully refreshed from Google Patents.
US3588985A
Expired / Lapsed
US
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Apparatus for uniting a plunger and a piston of a fully assembled hypodermic needle syringe
Assignee: Individual
•
Filing: 1969-09-29
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Granted: 1971-06-29
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Expires: 1989-09-29
Abstract
Abstract A PLUNGER TO ACTUATE THE PISTON OF A FULLY ASSEMBLED HYPODERMIC NEEDLE IS UNITED TO SAID PISTON BY MOVING THE SYRINGE LONGITUDINALLY TOWARD A ROTATING PLUNGER TO ENGAGE THE PISTON WITH SAID ROTATING PLUNGER AND THE ROTATION OF THE PLUNGER UNITING THE PISTON AND THE PLUNGER.
Inventors
- 👤 Walter A Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:04
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; A; A61; A61M; A61M2207/00; A61M2207/10; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31511; A61M5/31515; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53322; Y10T29/53339; Y10T29/53687
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |