US2211057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe
Assignee: United Shoe Machinery Corp
•
Filing: 1938-10-31
•
Granted: 1940-08-13
•
Expires: 1958-10-31
Abstract
No abstract record available.
Inventors
- 👤 Maxwell E Duckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:54
CPC Classifications
A; A43; A43D; A43D8/00; A43D8/52; A43B; A43B13/00; A43B13/14; A43B13/141; A43B13/38
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) | 1943-08-13 | 1944-02-12 | 1944-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-13 | 1948-02-12 | 1948-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-13 | 1952-02-12 | 1952-08-13 | $7700.00 | Window Closed / Lapsed |