US2557404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool
Assignee: Kearney and Trecker Corp
•
Filing: 1945-05-09
•
Granted: 1951-06-19
•
Expires: 1965-05-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Armitage
- 👤 Alfred O Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:52
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2265; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/1914; Y10T407/1916; Y10T407/192; Y10T407/1922; Y10T407/22; Y10T407/2268
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1756516A
Cited
US1747455A
Cited
US1964972A
Cited
US1912666A
Cited
US2033384A
Cited
DE683022C
Cited
US2239794A
Cited
US2186417A
Cited
US2328493A
Cited
US2367221A
Cited
US2382509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |