US3237815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal plunger
Assignee: V P P Inc
•
Filing: 1964-06-05
•
Granted: 1966-03-01
•
Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Robert W Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/005; F16J1/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PLUNGER FOR A SYRING HAVING A HOLLOW BARELL COMPRISING: A GENERALLY CYLINDRICAL MEMBER HAVING A CLOSED LOWER END AND AN OPEN UPPER END; NEAR SAID LOWER END A PLURALITY OF OUTWARDLY EXTENDING RINGS ON SAID CYLINDRICAL MEMBER ADAPTED TO ENGAGE THE INNER WALL OF A SYRING BARREL; A BEAD ON THE OPEN END OF SAID CYLINDRICAL MEMBER A PORTION OF WHICH EXTENDS INWARDLY AND FORMS
Claim 2
Dependent Claim
66 words
A PLUNGER FOR A SYRING HAVING A HOLLOW BARELL COMPRISING: A GENERALLY CYLINDRICAL MEMBER HAVING A CLOSED LOWER END AND AN OPEN UPPER END; NEAR SAID LOWER END A PLURALITY OF OUTWARDLY EXTENDING RINGS ON SAID CYLINDRICAL MEMBER ADAPTED TO ENGAGE THE INNER WALL OF A SYRING BARREL; A BEAD ON THE OPEN END OF SAID CYLINDRICAL MEMBER A PORTION OF WHICH EXTENDS INWARDLY AND FORMS
References Cited (Backward Citations)
US2607342A
Cited
US2895773A
Cited
US2832340A
Cited
US3050059A
Cited
US3028052A
Cited
US3150801A
Cited
US3098483A
Cited
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 |