US2767641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doughnut cooking machine
Assignee: Individual
•
Filing: 1953-06-04
•
Granted: 1956-10-23
•
Expires: 1973-06-04
Abstract
No abstract record available.
Inventors
- 👤 Virgil E Ackles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:10
CPC Classifications
A; A21; A21B; A21B5/00; A21B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1665017A
Cited
US1492541A
Cited
US1559413A
Cited
US2067849A
Cited
US2083082A
Cited
US2201364A
Cited
US2243016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |