US2074038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond embedded abrading tool
Assignee: Individual
•
Filing: 1935-05-29
•
Granted: 1937-03-16
•
Expires: 1955-05-29
Abstract
No abstract record available.
Inventors
- 👤 Fay H Willey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:06
CPC Classifications
C; C22; C22C; C22C26/00; B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; Y; Y10; Y10S; Y10S76/00; Y10S76/12
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) | 1940-03-15 | 1940-09-14 | 1941-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-15 | 1944-09-14 | 1945-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-15 | 1948-09-14 | 1949-03-16 | $7700.00 | Window Closed / Lapsed |