US3325061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe
Assignee: University of California Berkeley
•
Filing: 1965-09-01
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Granted: 1967-06-13
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Orval T Ellsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:31
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/3129; A61M5/3137; A61M5/3148; A61M5/315; A61M5/31511
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A HYPODERMIC SYRINGE COMPRISING A CYLINDRICAL BARREL ADAPTED TO BE GRASPED BY THE FINGERS OF A USER''S HAND, A PLUNGER RECIPROCABLE IN SAID BARREL, A SLIDE CONNECTED TO SAID PLUNGER AND OVERLYING SAID BARREL, AND MEANS ON SAID SLIDE ADAPTED TO BE ENGAGED BY THE THUMB OF SAID USER''S HAND FOR MOVING SAID SLIDE AXIALLY IN BOTH DIRECTIONS TO MOVE SAID PLUNGER IN SAID BARREL.
Claim 2
Dependent Claim
65 words
A HYPODERMIC SYRINGE COMPRISING A CYLINDRICAL BARREL ADAPTED TO BE GRASPED BY THE FINGERS OF A USER''S HAND, A PLUNGER RECIPROCABLE IN SAID BARREL, A SLIDE CONNECTED TO SAID PLUNGER AND OVERLYING SAID BARREL, AND MEANS ON SAID SLIDE ADAPTED TO BE ENGAGED BY THE THUMB OF SAID USER''S HAND FOR MOVING SAID SLIDE AXIALLY IN BOTH DIRECTIONS TO MOVE SAID PLUNGER IN SAID BARREL.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |