US3307731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plugging device
Assignee: Individual
•
Filing: 1965-03-24
•
Granted: 1967-03-07
•
Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Seltzer Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:46
CPC Classifications
B; B60; B60R; B60R17/00; B65; B65D; B65D39/00; B65D39/12; F; F02; F02B; F02B77/00; F02B77/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PLUGGING DEVICE COMPRISING: (A) AN EXPANSIBLE STOPPER; (B) A WASHER-LIKE MEMBER DISPOSED SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID STOPPER AND SECURED TO SAID STOPPER AT THE OPEN END OF SAID STOPPER; (C) A NUT SECURED TO SAID WASHER-LIKE MEMBER AND ADAPTED TO RECEIVE A BOLT ALONG THE LONGITUDINAL AXIS OF SAID STOPPER FOR EXPANDING SAID STOPPER LONGITUDINALLY; (D) AND A BEARING MEMBER DISPOSED ALONG THE LONGITUDINAL AXIS OF SAID STOPPER AND AGAINST WHICH SAID BOLT BEARS AS SAID BOLT IS TURNED INTO SAID NUT AND SAID STOPPER IS EXPANDED LONGITUDINALLY.
Claim 2
Dependent Claim
93 words
A PLUGGING DEVICE COMPRISING: (A) AN EXPANSIBLE STOPPER; (B) A WASHER-LIKE MEMBER DISPOSED SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID STOPPER AND SECURED TO SAID STOPPER AT THE OPEN END OF SAID STOPPER; (C) A NUT SECURED TO SAID WASHER-LIKE MEMBER AND ADAPTED TO RECEIVE A BOLT ALONG THE LONGITUDINAL AXIS OF SAID STOPPER FOR EXPANDING SAID STOPPER LONGITUDINALLY; (D) AND A BEARING MEMBER DISPOSED ALONG THE LONGITUDINAL AXIS OF SAID STOPPER AND AGAINST WHICH SAID BOLT BEARS AS SAID BOLT IS TURNED INTO SAID NUT AND SAID STOPPER IS EXPANDED LONGITUDINALLY.
References Cited (Backward Citations)
US2021259A
Cited
US2978138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |