Patent US2097646A successfully refreshed from Google Patents.
US2097646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metalworking machine
Assignee: CLEVELAND AUTOMATIC MACHINE Co
•
Filing: 1934-11-02
•
Granted: 1937-11-02
•
Expires: 1954-11-02
Abstract
No abstract record available.
Inventors
- 👤 Harry W Rupple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:53
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/03; B23B; B23B31/00; B23B31/003; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5129; Y10T82/00; Y10T82/26
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) | 1940-11-01 | 1941-05-03 | 1941-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-11-01 | 1945-05-03 | 1945-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-11-01 | 1949-05-03 | 1949-11-02 | $7700.00 | Window Closed / Lapsed |