US3495625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid flow control valve assembly
Assignee: Mastabar Mining Equipment Co Ltd
•
Filing: 1967-04-21
•
Granted: 1970-02-17
•
Expires: 1987-04-21
Abstract
No abstract record available.
Inventors
- 👤 Peter Shuttleworth
- 👤 Eric Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:36
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/10; F16K39/00; F16K39/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87121; Y10T137/87129; Y10T137/87137; Y10T137/87917; Y10T137/88022; Y10T137/8803; Y10T137/88046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636513A
Cited
GB959716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |