Patent US1600726A successfully refreshed from Google Patents.
US1600726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for slitting sheet material
Assignee: Goodrich Corp
•
Filing: 1921-06-27
•
Granted: 1926-09-21
•
Expires: 1941-06-27
Abstract
No abstract record available.
Inventors
- 👤 Walter B Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:29
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/003; Y; Y10; Y10T; Y10T29/00; Y10T29/11; Y10T29/1131; Y10T29/1138; Y10T82/00; Y10T82/16; Y10T82/16016; Y10T82/16426; Y10T82/16951
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) | 1929-09-20 | 1930-03-22 | 1930-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-09-20 | 1934-03-22 | 1934-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-09-20 | 1938-03-22 | 1938-09-21 | $7700.00 | Window Closed / Lapsed |