US2536864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing threadcutting chasers
Assignee: Greenfield Tap & Die Corp
•
Filing: 1946-11-23
•
Granted: 1951-01-02
•
Expires: 1966-11-23
Abstract
No abstract record available.
Inventors
- 👤 Royce M Strickland
- 👤 Johan V Arvidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:42
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/60; B24B3/602
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US798352A
Cited
US1271495A
Cited
US1555853A
Cited
US1557005A
Cited
US1603446A
Cited
US1743116A
Cited
US1694560A
Cited
US1793727A
Cited
US1981445A
Cited
US2096422A
Cited
US2144987A
Cited
US2394645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |