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US3257046A
Expired / Lapsed
US
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Dispensing cap for collapsible tubes
Assignee: Individual
•
Filing: 1964-09-28
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Granted: 1966-06-21
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Allen R Kasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:25
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A DISPENSING CAP OF THE CHARACTER DESCRIBED COMPRISING A HOLLOW, GENERALLY-CYLINDRICAL BODY, OPEN AT ONE END AND CONVEXLY ROUNDED CLOSED AT THE OPPOSITE END; SAID CAP BEING OF UNIFORM WALL THICKNESS AND FORMED OF AN IMPERMEABLE ELASTOMER; LOCATED AT THE CLOSED END IS A NORMALLY CLOSED SLIT VALVE, THE ENDS OF SAID SLIT VALVE TERMINATING ALONG LINES WHICH ARE LESS THAN NORMAL TO THE SURFACES OF SAID CLOSED END, SAID VALVE BEING THEREBY ADAPTED TO RESPOND TO THE APPLICATION OF PRESSURE WITHIN SAID CAP BY OPENING FROM THE INSIDE OUT AND TO RESPOND TO THE CESSATION OF INTERNAL PRESSURE BY CLOSING FROM THE OUTSIDE IN.
Claim 2
Dependent Claim
105 words
A DISPENSING CAP OF THE CHARACTER DESCRIBED COMPRISING A HOLLOW, GENERALLY-CYLINDRICAL BODY, OPEN AT ONE END AND CONVEXLY ROUNDED CLOSED AT THE OPPOSITE END; SAID CAP BEING OF UNIFORM WALL THICKNESS AND FORMED OF AN IMPERMEABLE ELASTOMER; LOCATED AT THE CLOSED END IS A NORMALLY CLOSED SLIT VALVE, THE ENDS OF SAID SLIT VALVE TERMINATING ALONG LINES WHICH ARE LESS THAN NORMAL TO THE SURFACES OF SAID CLOSED END, SAID VALVE BEING THEREBY ADAPTED TO RESPOND TO THE APPLICATION OF PRESSURE WITHIN SAID CAP BY OPENING FROM THE INSIDE OUT AND TO RESPOND TO THE CESSATION OF INTERNAL PRESSURE BY CLOSING FROM THE OUTSIDE IN.
References Cited (Backward Citations)
US2143719A
Cited
US2260100A
Cited
FR996998A
Cited
US2837251A
Cited
US3002660A
Cited
US3144968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |