US2104158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work guide for woodworking machines
Assignee: Duro Metal Products Co
•
Filing: 1936-12-31
•
Granted: 1938-01-04
•
Expires: 1956-12-31
Abstract
No abstract record available.
Inventors
- 👤 Theron L Hedgpeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:31
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/005; B23Q11/00; B23Q11/0042; B27; B27G; B27G21/00; Y; Y02; Y02P; Y02P70/00; Y02P70/10
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) | 1941-01-03 | 1941-07-05 | 1942-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-03 | 1945-07-05 | 1946-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-03 | 1949-07-05 | 1950-01-04 | $7700.00 | Window Closed / Lapsed |