US2462480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing method and apparatus
Assignee: Individual
•
Filing: 1944-01-08
•
Granted: 1949-02-22
•
Expires: 1964-01-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Eppler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:08
CPC Classifications
B; B24; B24C; B24C11/00; B24C11/005; B24C3/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US252979A
Cited
US412771A
Cited
US584021A
Cited
US649782A
Cited
US844046A
Cited
US1202368A
Cited
US1643175A
Cited
GB329295A
Cited
US1940539A
Cited
GB475316A
Cited
US2176577A
Cited
US2248530A
Cited
US2245866A
Cited
US2345648A
Cited
US2317837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |