US3401914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid controlling valves
Assignee: Crane Process Flow Technologies Ltd
•
Filing: 1965-02-23
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Granted: 1968-09-17
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Shand Stanley Grapes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/208; F16K5/06; F16K5/0626; F16K5/0631; F16K5/0636; F16K5/0663; F16K5/0673; F16K5/0678
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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |