US3527241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control systems
Assignee: Allard Way Holdings Ltd
•
Filing: 1967-11-29
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Granted: 1970-09-08
•
Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Hubert R Bristow
- 👤 John F A Parkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:24
CPC Classifications
F; F15; F15B; F15B5/00; G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2013; G05D16/202; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2544; Y10T137/2546; Y10T137/2703; Y10T137/2705; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2948295A
Cited
US2883996A
Cited
US2992302A
Cited
US3048185A
Cited
US3237107A
Cited
US3247712A
Cited
US3390694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |