US3446473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed solenoid control valves
Assignee: Monsanto Co
•
Filing: 1965-05-06
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Granted: 1969-05-27
•
Expires: 1985-05-06
Abstract
No abstract record available.
Inventors
- 👤 George E Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0686; F16K31/0693; F16K31/0644; F16K31/0651; F16K31/0655; F16K31/0675; H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351; H03K3/353; H03K3/354
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2610644A
Cited
US2931233A
Cited
US2827077A
Cited
US3001757A
Cited
US3094132A
Cited
US3098635A
Cited
US3098595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |