Patent US209890A successfully refreshed from Google Patents.
Patent US2237759A successfully refreshed from Google Patents.
US2237759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper winding machine
Assignee: EDWIN M KWITEK
•
Filing: 1940-01-25
•
Granted: 1941-04-08
•
Expires: 1960-01-25
Abstract
No abstract record available.
Inventors
- 👤 George M Kwitek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:40
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/26; B65H19/2238; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41426; B65H2301/4148; B65H2301/417; B65H2301/4187; B65H2301/4189; B65H2301/41892; B65H2301/418925; B65H2408/00; B65H2408/20; B65H2408/23; B65H2408/231; B65H2408/2312; B65H2408/2315; B65H2408/23157; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4699; Y10T83/4702; 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) | 1944-04-07 | 1944-10-07 | 1945-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-07 | 1948-10-07 | 1949-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-07 | 1952-10-07 | 1953-04-08 | $7700.00 | Window Closed / Lapsed |