Patent US3425169A successfully refreshed from Google Patents.
US3425169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work positioning apparatus for grinding machine
Assignee: Landis Tool Co
•
Filing: 1965-06-24
•
Granted: 1969-02-04
•
Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Elman R Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:17
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/067; B23; B23Q; B23Q15/00; B23Q7/00; B23Q7/16; B23Q7/18; B24B41/005; B24B7/00; B24B7/10; B24B7/16; B24B7/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1980440A
Cited
US2092895A
Cited
DE695520C
Cited
US2805524A
Cited
US2973532A
Cited
US3239969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |