US3138280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated containers
Assignee: Watkins Manufacturing Corp
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Filing: 1961-01-11
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Granted: 1964-06-23
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Expires: 1981-01-11
Abstract
No abstract record available.
Inventors
- 👤 Donald S Shafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:48
CPC Classifications
B; B65; B65D; B65D7/00; B65D7/12; B65D7/22; B65D81/00; B65D81/38; B65D81/3813; B65D81/3818
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN INSULATED CONTAINER COMPRISING AN IMPERFORATE OUTER MEMBER CYLINDRICAL IN CROSS-SECTION AND HAVING AN OPEN UPPER END, A CLOSED BOTTOM END, AND A WALL EXTENDING UPWARDLY FROM SAID BOTTOM END TO SAID OPEN UPPER END AND WITH SAID CLOSED BOTTOM END OF GREATER DIAMETER THAN THE OPEN UPPER END WHEREFORE SAID OUTER MEMBER WALL INWARDLY AND UPWARDLY INCLINES, A PRE-FORMED INNER MEMBER CYLINDRICAL IN TRANSVERSE CROSS-SECTION AND HAVING AN OPEN UPPER END AND A CLOSED BOTTOM END AND OF LESS HEIGHT THAN THE HEIGHT OF THE OUTER MEMBER BETWEEN ITS OPEN UPPER END AND CLOSED BOTTOM END, SAID INNER MEMBER BEING OF A DIAMETER THROUGHOUT ITS LENGTH SUBSTANTIALLY EQUAL TO THE INNER DIAMETER OF THE OPEN UPPER END OF THE OUTER MEMBER AND SAID INNER MEMBER BEING TELESCOPED AND SUSPENDED WITHIN THE OUTER MEMBER SO THAT AN IN-
Claim 2
Dependent Claim
138 words
AN INSULATED CONTAINER COMPRISING AN IMPERFORATE OUTER MEMBER CYLINDRICAL IN CROSS-SECTION AND HAVING AN OPEN UPPER END, A CLOSED BOTTOM END, AND A WALL EXTENDING UPWARDLY FROM SAID BOTTOM END TO SAID OPEN UPPER END AND WITH SAID CLOSED BOTTOM END OF GREATER DIAMETER THAN THE OPEN UPPER END WHEREFORE SAID OUTER MEMBER WALL INWARDLY AND UPWARDLY INCLINES, A PRE-FORMED INNER MEMBER CYLINDRICAL IN TRANSVERSE CROSS-SECTION AND HAVING AN OPEN UPPER END AND A CLOSED BOTTOM END AND OF LESS HEIGHT THAN THE HEIGHT OF THE OUTER MEMBER BETWEEN ITS OPEN UPPER END AND CLOSED BOTTOM END, SAID INNER MEMBER BEING OF A DIAMETER THROUGHOUT ITS LENGTH SUBSTANTIALLY EQUAL TO THE INNER DIAMETER OF THE OPEN UPPER END OF THE OUTER MEMBER AND SAID INNER MEMBER BEING TELESCOPED AND SUSPENDED WITHIN THE OUTER MEMBER SO THAT AN IN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |