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US2575643A
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Popcorn warmer
Assignee: SUPURDISPLAY Inc
•
Filing: 1948-04-05
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Granted: 1951-11-20
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Expires: 1968-04-05
Abstract
No abstract record available.
Inventors
- 👤 Rudolf N Tamsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:29
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1648005A
Cited
GB336679A
Cited
US2005501A
Cited
US2188708A
Cited
US2423342A
Cited
US2458190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |