Patent US2769643A successfully refreshed from Google Patents.
Patent US4022754A successfully refreshed from Google Patents.
US2083370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic rotary punch
Assignee: Individual
•
Filing: 1936-06-26
•
Granted: 1937-06-08
•
Expires: 1956-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gerald G Greulich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:51
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/36; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/483; Y10T83/4836
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) | 1940-06-07 | 1940-12-07 | 1941-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-07 | 1944-12-07 | 1945-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-07 | 1948-12-07 | 1949-06-08 | $7700.00 | Window Closed / Lapsed |