US2752791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopic apparatus
Assignee: Research Corp
•
Filing: 1951-02-09
•
Granted: 1956-07-03
•
Expires: 1971-02-09
Abstract
No abstract record available.
Inventors
- 👤 John J Jarosh
- 👤 Clarence A Haskell
- 👤 Jr William W Dunnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:23
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1257; Y10T74/1261; Y10T74/1275
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1743533A
Cited
US1831597A
Cited
US1900709A
Cited
US1773172A
Cited
US2361790A
Cited
US2590428A
Cited
US2512746A
Cited
US2531826A
Cited
US2595268A
Cited
US2623714A
Cited
US2585024A
Cited
US2618159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |