US2187992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and machine for grooving shaving gears
Assignee: Gleason Works
•
Filing: 1936-11-25
•
Granted: 1940-01-23
•
Expires: 1956-11-25
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
- 👤 Allan H Candee
- 👤 Winfred A Witham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:47
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/34; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/107791; Y10T409/108109; Y10T409/108268; Y10T409/30; Y10T409/303752; Y10T409/306664; Y10T409/30672; Y10T409/307448
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) | 1943-01-22 | 1943-07-24 | 1944-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-22 | 1947-07-24 | 1948-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-22 | 1951-07-24 | 1952-01-23 | $7700.00 | Window Closed / Lapsed |