Patent US2584499A successfully refreshed from Google Patents.
US2584499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for precision bore grinding
Assignee: NORMAN Co VAN
•
Filing: 1948-08-02
•
Granted: 1952-02-05
•
Expires: 1968-08-02
Abstract
No abstract record available.
Inventors
- 👤 Roger S Pyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:21
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1102558A
Cited
US1473520A
Cited
US1549600A
Cited
US1602680A
Cited
US1997978A
Cited
US1840231A
Cited
US1914995A
Cited
US1872667A
Cited
US2050261A
Cited
US2092876A
Cited
US2141853A
Cited
US2127210A
Cited
US2280692A
Cited
US2326339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |