US3395890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic control valve and method for making same
Assignee: Chandler Evans Inc
•
Filing: 1965-10-23
•
Granted: 1968-08-06
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur F J Eckert
- 👤 David L Moorcroft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; F16K27/0245; F16K25/00; F16K25/02; F16K27/029; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2853976A
Cited
GB842238A
Cited
US3155014A
Cited
US3188048A
Cited
US3176713A
Cited
US3251575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |