US2348211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo mechanism
Assignee: Sperry Gyroscope Co Inc
•
Filing: 1940-10-19
•
Granted: 1944-05-09
•
Expires: 1960-10-19
Abstract
No abstract record available.
Inventors
- 👤 Carl A Frische
- 👤 Orland E Esval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:13
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/0202; F; F15; F15B; F15B7/00; F15B7/005; F15B7/006; F16; F16H; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005
Claims Analysis
Total Claims: 0
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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) | 1947-05-09 | 1947-11-08 | 1948-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-09 | 1951-11-08 | 1952-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-09 | 1955-11-08 | 1956-05-09 | $7700.00 | Window Closed / Lapsed |