US3455540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stirring device
Assignee: Individual
•
Filing: 1968-01-04
•
Granted: 1969-07-15
•
Expires: 1988-01-04
Abstract
No abstract record available.
Inventors
- 👤 Emil G Marcmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:22
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/051; B01F27/054; B01F27/0542
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US579055A
Cited
GB190703207A
Cited
US1218623A
Cited
US1447653A
Cited
US1734120A
Cited
US3011768A
Cited
US3166303A
Cited
US3223389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |