US1813568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable machine head
Assignee: DE WALT PRODUCTS Corp
•
Filing: 1929-12-17
•
Granted: 1931-07-07
•
Expires: 1949-12-17
Abstract
No abstract record available.
Inventors
- 👤 Walt Raymond E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:49
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/20; B27B5/201; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/262; B23Q1/28; B23Q1/70; B23Q1/706; Y; Y10; Y10T; Y10T83/00; Y10T83/95
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) | 1934-07-06 | 1935-01-05 | 1935-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-06 | 1939-01-05 | 1939-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-06 | 1943-01-05 | 1943-07-07 | $7700.00 | Window Closed / Lapsed |