US3538931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic control systems
Assignee: Unisys Corp
•
Filing: 1967-10-02
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Granted: 1970-11-10
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert L Blosser Jr
- 👤 Donald F Folland
- 👤 Wayne P Russon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/003; G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/366; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071; Y10T137/2076; Y10T137/212; Y10T137/2125; Y10T137/2147
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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |