US2394769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic drill press feeder
Assignee: Heckethorn Manufacturing and Supply Co
•
Filing: 1943-08-02
•
Granted: 1946-02-12
•
Expires: 1963-08-02
Abstract
No abstract record available.
Inventors
- 👤 William W Heckethorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:07
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/02; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/52; B23Q1/522; B23Q16/00; B23Q16/02; B23Q16/04; B23Q16/06; Y; Y10; Y10T; Y10T408/00; Y10T408/52; Y10T408/54; Y10T408/545; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1453; Y10T74/15; Y10T74/1558; Y10T74/1584
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) | 1949-02-11 | 1949-08-13 | 1950-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-11 | 1953-08-13 | 1954-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-11 | 1957-08-13 | 1958-02-12 | $7700.00 | Window Closed / Lapsed |