US2228967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of completing gear finishing tools
Assignee: Fellows Gear Shaper Co
•
Filing: 1938-10-29
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Granted: 1941-01-14
•
Expires: 1958-10-29
Abstract
No abstract record available.
Inventors
- 👤 Edward W Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:16
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/002; B23F19/007; B23F19/05; B23P; B23P15/00; B23P15/28; B23P15/34; Y; Y10; Y10S; Y10S451/00; Y10S451/90; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/10477; Y10T409/104929
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) | 1944-01-14 | 1944-07-15 | 1945-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-14 | 1948-07-15 | 1949-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-14 | 1952-07-15 | 1953-01-14 | $7700.00 | Window Closed / Lapsed |