US3224445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirating syringe
Assignee: Cook Waite Laboratoire Inc
•
Filing: 1956-03-01
•
Granted: 1965-12-21
•
Expires: 1976-03-01
Abstract
No abstract record available.
Inventors
- 👤 Norman W Melott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:43
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M2005/2403; A61M2005/2407; A61M2005/2433; A61M2005/2437; A61M2005/2485; A61M2005/2496
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN ASPIRATING SYRINGE COMPRISING A GENERALLY CYLINDRICAL MAGAZINE, A PLUNGER RECIPROCABLE LONGITUDINALLY WITHIN SAID MAGAZINE, AND A SUBSTANTIALLY FLAT ASPIRATOR HOOK RIGIDLY FIXED TO THE FORWARD END OF SAID PLUNGER; SAID MAGAZINE BEING ADAPTED TO RECEIVE THEREIN A CYLINDRICAL AMPOULE HAVING A PISTON STOPPER SLIDABLE FORWARDLY THEREIN TO EXPEL A MEDICAMENT THEREFROM AND RETRACTIBLE TO AFFORD ASPIRATION, SAID HOOK HAVING SUBSTANTIALLY SIMILAR OPPOSITE SIDE FACES APPROXIMATELY PARALLEL TO THE LINE OF RECIPROCAL MOVEMENT OF THE PLUNGER; SAID HOOK BEING ADAPTED TO BECOME EMBEDDED IN SAID STOPPER WITHOUT TURNING RELATIVELY THERETO, AND HAVING A PORTION OPPOSING ITS WITHDRAWAL FROM SAID STOPPER UPON A RETRACTION STROKE OF THE PLUNGER.
Claim 2
Dependent Claim
107 words
AN ASPIRATING SYRINGE COMPRISING A GENERALLY CYLINDRICAL MAGAZINE, A PLUNGER RECIPROCABLE LONGITUDINALLY WITHIN SAID MAGAZINE, AND A SUBSTANTIALLY FLAT ASPIRATOR HOOK RIGIDLY FIXED TO THE FORWARD END OF SAID PLUNGER; SAID MAGAZINE BEING ADAPTED TO RECEIVE THEREIN A CYLINDRICAL AMPOULE HAVING A PISTON STOPPER SLIDABLE FORWARDLY THEREIN TO EXPEL A MEDICAMENT THEREFROM AND RETRACTIBLE TO AFFORD ASPIRATION, SAID HOOK HAVING SUBSTANTIALLY SIMILAR OPPOSITE SIDE FACES APPROXIMATELY PARALLEL TO THE LINE OF RECIPROCAL MOVEMENT OF THE PLUNGER; SAID HOOK BEING ADAPTED TO BECOME EMBEDDED IN SAID STOPPER WITHOUT TURNING RELATIVELY THERETO, AND HAVING A PORTION OPPOSING ITS WITHDRAWAL FROM SAID STOPPER UPON A RETRACTION STROKE OF THE PLUNGER.
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |