US2194780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing machine
Assignee: Individual
•
Filing: 1939-02-03
•
Granted: 1940-03-26
•
Expires: 1959-02-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:15
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/0069; B24B13/00; B24B13/0031; B24B13/02
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) | 1943-03-26 | 1943-09-25 | 1944-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-26 | 1947-09-25 | 1948-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-26 | 1951-09-25 | 1952-03-26 | $7700.00 | Window Closed / Lapsed |