US1646989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-shearing apparatus
Assignee: EDWARD A LANGENBACH
•
Filing: 1926-08-20
•
Granted: 1927-10-25
•
Expires: 1946-08-20
Abstract
No abstract record available.
Inventors
- 👤 William M Blecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/02; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/309; Y10T83/00; Y10T83/626; Y10T83/637; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6491; Y10T83/6579
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) | 1930-10-24 | 1931-04-25 | 1931-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-24 | 1935-04-25 | 1935-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-24 | 1939-04-25 | 1939-10-25 | $7700.00 | Window Closed / Lapsed |