US2807123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machines and the like
Assignee: Latrobe Steel Co
•
Filing: 1955-05-11
•
Granted: 1957-09-24
•
Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 Francis M Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:06
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/20; B24B7/22; B24B7/224
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US741335A
Cited
US820801A
Cited
US1133653A
Cited
US1277472A
Cited
US1286481A
Cited
US1445327A
Cited
FR612690A
Cited
FR711791A
Cited
US2726490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |