US2070537A
Expired / Lapsed
US
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Flying shear
Assignee: CHARLES W NEILL
•
Filing: 1934-02-26
•
Granted: 1937-02-09
•
Expires: 1954-02-26
Abstract
No abstract record available.
Inventors
- 👤 Percy W Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/02; B23D25/00; B23D25/12; B23D36/00; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4653; Y10T83/4656; Y10T83/4659; Y10T83/4662; Y10T83/4664; Y10T83/4737; Y10T83/474; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/483; Y10T83/4833
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) | 1940-02-09 | 1940-08-10 | 1941-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-09 | 1944-08-10 | 1945-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-09 | 1948-08-10 | 1949-02-09 | $7700.00 | Window Closed / Lapsed |