US3424951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control valve
Assignee: Monsanto Co
•
Filing: 1964-11-23
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Granted: 1969-01-28
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 George E Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:08
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0686; F16K31/0689; F16K31/0644; F16K31/0651; F16K31/0655; F16K31/0675; F16K31/0693; H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351; H03K3/353; H03K3/354; Y; Y10; Y10T; Y10T137/00; Y10T137/0318
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |