Patent US1981199A successfully refreshed from Google Patents.
US1981199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector for perforating machines
Assignee: CUMMINS PERFCRATOR Co
•
Filing: 1933-05-29
•
Granted: 1934-11-20
•
Expires: 1953-05-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:29
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/36; B41K3/38; Y; Y10; Y10T; Y10T83/00; Y10T83/081; Y10T83/088; Y10T83/202; Y10T83/2092; Y10T83/22; Y10T83/2205; Y10T83/222; Y10T83/748; Y10T83/7587
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) | 1937-11-19 | 1938-05-21 | 1938-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-19 | 1942-05-21 | 1942-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-19 | 1946-05-21 | 1946-11-20 | $7700.00 | Window Closed / Lapsed |