US2877398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servomechanism control system
Assignee: IIT Research Institute
•
Filing: 1955-01-10
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Granted: 1959-03-10
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Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Donald J Gimpel
- 👤 William A Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/501; G06F7/502; G05; G05D; G05D3/00; G05D3/12; G05D3/20; G06F7/02; G06F7/026; H; H03; H03M; H03M1/00; H03M1/12; H03M1/124; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T409/30112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |