US1494517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread-milling cutter
Assignee: Individual
•
Filing: 1922-07-31
•
Granted: 1924-05-20
•
Expires: 1942-07-31
Abstract
No abstract record available.
Inventors
- 👤 Henry C Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:38
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/32; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1745; Y10T407/19; Y10T407/1952; Y10T407/1956
Claims Analysis
Total Claims: 0
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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) | 1927-05-20 | 1927-11-19 | 1928-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-20 | 1931-11-19 | 1932-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-20 | 1935-11-19 | 1936-05-20 | $7700.00 | Window Closed / Lapsed |