US2663548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beverage cooler
Assignee: HEAT X CHANGER CO Inc
•
Filing: 1948-03-20
•
Granted: 1953-12-22
•
Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Boling Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:51
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518798A
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US1430769A
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US1666599A
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US1635992A
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FR613103A
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US1737347A
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US1768556A
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US1799991A
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US1989996A
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US2142856A
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US2135367A
Cited
US2499448A
Cited
US2466676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |