US2756546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centerless grinder
Assignee: GLEBAR Co
•
Filing: 1953-07-01
•
Granted: 1956-07-31
•
Expires: 1973-07-01
Abstract
No abstract record available.
Inventors
- 👤 Robert C Barhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:54
CPC Classifications
B; B24; B24B; B24B11/00; B24B11/02; B24B11/04; B24B11/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |