US2538532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: GENEVIEVE R OLIVER
•
Filing: 1945-12-03
•
Granted: 1951-01-16
•
Expires: 1965-12-03
Abstract
No abstract record available.
Inventors
- 👤 Genevieve R Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/34; Y; Y10; Y10S; Y10S29/00; Y10S29/077; Y10S29/088
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US213807A
Cited
GB186228A
Cited
US1831863A
Cited
US1929960A
Cited
US1908476A
Cited
US2001173A
Cited
US2021602A
Cited
US2231217A
Cited
US2375620A
Cited
US2292229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |