US3237660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe assembly
Assignee: Individual
•
Filing: 1962-08-06
•
Granted: 1966-03-01
•
Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hill Clifford Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:18
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31565; A61M5/3159; A61M5/31593; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/31501; A61M2005/31508; A61M5/31561
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SYRINGE COMPRISING A BARREL HAVING A BORE, A PLUNGER BODY HAVING AXIALLY SPACED BEARINGS SLIDABLE IN SAID BORE, A PLUNGER ROD FOR PROPELLING SAID PLUNGER BODY ON SAID BEARINGS, A VOLUME STOP LONGITUDINALLY MOVABLY MOUNTED ON SAID PLUNGER ROD, MEANS FOR LOCKING SAID VOLUME STOP IN SELECTED VOLUME DETERMINING POSITIONS, SAID PLUNGER BODY HAVING AN ELASTIC MOUNTING FOR THE FORWARD PORTION OF SAID ROD IN SAID BEARINGS, WHEREBY SAID ROD MAY BE INCLINED IN SAID BORE TO ENGAGE SAID STOP WITH THE REAR END OF SAID BARREL AT THE END OF A VOLUME DETERMINING STROKE, AND AUTOMATICALLY RETURNED TO CENTERED POSITION FOR SAID STOP TO ENTER SAID BORE FOR A DISPENSING STROKE.
Claim 2
Dependent Claim
113 words
A SYRINGE COMPRISING A BARREL HAVING A BORE, A PLUNGER BODY HAVING AXIALLY SPACED BEARINGS SLIDABLE IN SAID BORE, A PLUNGER ROD FOR PROPELLING SAID PLUNGER BODY ON SAID BEARINGS, A VOLUME STOP LONGITUDINALLY MOVABLY MOUNTED ON SAID PLUNGER ROD, MEANS FOR LOCKING SAID VOLUME STOP IN SELECTED VOLUME DETERMINING POSITIONS, SAID PLUNGER BODY HAVING AN ELASTIC MOUNTING FOR THE FORWARD PORTION OF SAID ROD IN SAID BEARINGS, WHEREBY SAID ROD MAY BE INCLINED IN SAID BORE TO ENGAGE SAID STOP WITH THE REAR END OF SAID BARREL AT THE END OF A VOLUME DETERMINING STROKE, AND AUTOMATICALLY RETURNED TO CENTERED POSITION FOR SAID STOP TO ENTER SAID BORE FOR A DISPENSING STROKE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |