US2432765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Individual
•
Filing: 1945-11-28
•
Granted: 1947-12-16
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 John J Keller
- 👤 Lober Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:41
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1762681A
Cited
US1898648A
Cited
US2003269A
Cited
US2109600A
Cited
US2082020A
Cited
US2145310A
Cited
US2177898A
Cited
US2272055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |