Patent US1067237A successfully refreshed from Google Patents.
Patent US2160970A successfully refreshed from Google Patents.
US2160970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclinometer for aircraft
Assignee: Siemens APP und Maschinen GmbH
•
Filing: 1937-04-05
•
Granted: 1939-06-06
•
Expires: 1957-04-05
Abstract
No abstract record available.
Inventors
- 👤 Koster Paul Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:36
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/44
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) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |