Patent US1950356A successfully refreshed from Google Patents.
US1950356A
Expired / Lapsed
US
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Method of making improved cutting and forming tools and wearresisting surfaces
Assignee: Individual
•
Filing: 1932-01-16
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Granted: 1934-03-06
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Expires: 1952-01-16
Abstract
No abstract record available.
Inventors
- 👤 Bats Jean Hubert Louis De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:05
CPC Classifications
B; B23; B23P; B23P5/00; Y; Y10; Y10S; Y10S425/00; Y10S425/026; Y10S76/00; Y10S76/03; Y10S76/05; Y10T; Y10T407/00; Y10T407/26; Y10T407/27
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) | 1937-03-05 | 1937-09-04 | 1938-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-05 | 1941-09-04 | 1942-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-05 | 1945-09-04 | 1946-03-06 | $7700.00 | Window Closed / Lapsed |