Patent US2647653A successfully refreshed from Google Patents.
US2647653A
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US
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Insulated container for perishable substances
Assignee: Individual
•
Filing: 1950-09-18
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Granted: 1953-08-04
•
Expires: 1970-09-18
Abstract
No abstract record available.
Inventors
- 👤 John B Dube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:32
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/38; B65D81/3825; B65D81/3834; B65D2577/00; B65D2577/04; B65D2577/041; B65D2577/042; B65D2577/043
Claims Analysis
Total Claims: 0
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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) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |