US2126157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring system for determining the efficiency of rotary motion transmitting devices by comparing torques
Assignee: ZF Friedrichshafen AG
•
Filing: 1936-09-12
•
Granted: 1938-08-09
•
Expires: 1956-09-12
Abstract
No abstract record available.
Inventors
- 👤 Thungen Hubert Freiherr Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:57
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/16; G01L3/18
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) | 1941-08-08 | 1942-02-07 | 1942-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-08 | 1946-02-07 | 1946-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-08 | 1950-02-07 | 1950-08-09 | $7700.00 | Window Closed / Lapsed |