Patent US1811564A successfully refreshed from Google Patents.
US1811564A
Expired / Lapsed
US
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Adjustable doughnut machine
Assignee: Individual
•
Filing: 1930-04-14
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Granted: 1931-06-23
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Expires: 1950-04-14
Abstract
No abstract record available.
Inventors
- 👤 Fred L Schoel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:18
CPC Classifications
A; A21; A21C; A21C11/00; A21C11/16; A21C11/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-06-22 | 1934-12-22 | 1935-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-22 | 1938-12-22 | 1939-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-22 | 1942-12-22 | 1943-06-23 | $7700.00 | Window Closed / Lapsed |