US2080401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear cutter
Assignee: Gleason Works
•
Filing: 1935-04-09
•
Granted: 1937-05-18
•
Expires: 1955-04-09
Abstract
No abstract record available.
Inventors
- 👤 August C Heard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/12; B23F21/22; B23F23/00; B23F23/12; B23F23/1237; B23F23/125; Y; Y10; Y10S; Y10S29/00; Y10S29/066; Y10T; Y10T407/00; Y10T407/14; Y10T407/17; Y10T407/1705
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) | 1940-05-17 | 1940-11-16 | 1941-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-05-17 | 1944-11-16 | 1945-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-05-17 | 1948-11-16 | 1949-05-18 | $7700.00 | Window Closed / Lapsed |