Patent US2191930A successfully refreshed from Google Patents.
US2191930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work feeding mechanism
Assignee: Bryant Grinder Corp
•
Filing: 1938-01-28
•
Granted: 1940-02-27
•
Expires: 1958-01-28
Abstract
No abstract record available.
Inventors
- 👤 Merton H Arms
- 👤 Joseph B Johnson
- 👤 Turner Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:37
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/08; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/207; B23B31/2073; B23B2270/00; B23B2270/02; B23B2270/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-02-26 | 1943-08-28 | 1944-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-26 | 1947-08-28 | 1948-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-26 | 1951-08-28 | 1952-02-27 | $7700.00 | Window Closed / Lapsed |