US2424955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tumbling mill
Assignee: Pangborn Corp
•
Filing: 1944-09-26
•
Granted: 1947-07-29
•
Expires: 1964-09-26
Abstract
No abstract record available.
Inventors
- 👤 Percy J Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26; B24C3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1660058A
Cited
US1678072A
Cited
GB457897A
Cited
US2116160A
Cited
US2263321A
Cited
US2357109A
Cited
US2330949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |