US3338447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick closing stopper
Assignee: CENTER LABORATORIES Inc
•
Filing: 1965-09-22
•
Granted: 1967-08-29
•
Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles R Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:02
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CONTAINER STOPPER COMPRISING: A RESILIENT BODY DIMENSIONED TO FIT WITHIN THE NECK OF A CONTAINER TO BE CLOSED; SAID BODY HAVING A SLOT EXTENDING FROM A LOWER END THEREOF TO A POINT IN A MEDIAL PART OF SAID BODY; TWO SPACED STOPPER SEGMENTS ON OPPOSED SIDES OF SAID SLOT; AND A RIDGE ON SAID BODY, THE UPPERMOST PORTION OF WHICH RIDGE IS SPACED DOWNWARDLY FROM THE UPPER END OF THE SLOT A DISTANCE SUCH THAT UPON FRICTIONAL ENGAGEMENT OF SAID RIDGE WITH A SIDEWALL OF A CONTAINER AND THE EXERTION OF PRESSURE ON THE UPPER END OF THE STOPPER THERE WILL BE A SEPARATION OF THE STOPPER SEGMENTS AGAINST THE INTERIOR OF THE CONTAINER.
Claim 2
Dependent Claim
115 words
A CONTAINER STOPPER COMPRISING: A RESILIENT BODY DIMENSIONED TO FIT WITHIN THE NECK OF A CONTAINER TO BE CLOSED; SAID BODY HAVING A SLOT EXTENDING FROM A LOWER END THEREOF TO A POINT IN A MEDIAL PART OF SAID BODY; TWO SPACED STOPPER SEGMENTS ON OPPOSED SIDES OF SAID SLOT; AND A RIDGE ON SAID BODY, THE UPPERMOST PORTION OF WHICH RIDGE IS SPACED DOWNWARDLY FROM THE UPPER END OF THE SLOT A DISTANCE SUCH THAT UPON FRICTIONAL ENGAGEMENT OF SAID RIDGE WITH A SIDEWALL OF A CONTAINER AND THE EXERTION OF PRESSURE ON THE UPPER END OF THE STOPPER THERE WILL BE A SEPARATION OF THE STOPPER SEGMENTS AGAINST THE INTERIOR OF THE CONTAINER.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |