US2385198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming drawing holes in carbide die nibs
Assignee: Carboloy Co Inc
•
Filing: 1942-02-06
•
Granted: 1945-09-18
•
Expires: 1962-02-06
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Engle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:53
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; B; B23; B23H; B23H5/00; B23H5/06; B24; B24B; B24B19/00; B24B19/20; C04B41/53; C04B41/80; C04B41/91; Y; Y10; Y10S; Y10S451/00; Y10S451/908
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) | 1948-09-17 | 1949-03-19 | 1949-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-17 | 1953-03-19 | 1953-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-17 | 1957-03-19 | 1957-09-18 | $7700.00 | Window Closed / Lapsed |