US1525536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing screw taps or similar thread-cutting tools
Assignee: DELLE SOC IND DE
•
Filing: 1922-10-21
•
Granted: 1925-02-10
•
Expires: 1942-10-21
Abstract
No abstract record available.
Inventors
- 👤 Debrot Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:21
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/48; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/89; Y10T408/904; Y10T408/9044; Y10T408/9045
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) | 1928-02-10 | 1928-08-11 | 1929-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-02-10 | 1932-08-11 | 1933-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-02-10 | 1936-08-11 | 1937-02-10 | $7700.00 | Window Closed / Lapsed |