US2972292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion unit for popcorn machines
Assignee: Manley Inc
•
Filing: 1957-10-21
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Granted: 1961-02-21
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Waas
- 👤 William G Lippert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:08
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183; A23L7/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US680964A
Cited
US1658486A
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US2134088A
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US2232954A
Cited
US2586347A
Cited
US2538298A
Cited
US2690870A
Cited
US2902920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |