US2823448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear generating apparatus
Assignee: Klingelnberg GmbH
•
Filing: 1951-03-27
•
Granted: 1958-02-18
•
Expires: 1971-03-27
Abstract
No abstract record available.
Inventors
- 👤 Krumme Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:31
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/12; B23F21/22; B23F21/223; B23F21/226; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1705; Y10T407/171
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US388548A
Cited
US470462A
Cited
US1415339A
Cited
US1689566A
Cited
US1812384A
Cited
US2129077A
Cited
US2346806A
Cited
US2477153A
Cited
US2508556A
Cited
US2648894A
Cited
DE836423C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |