US2939474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable diverter valve
Assignee: Individual
•
Filing: 1957-10-11
•
Granted: 1960-06-07
•
Expires: 1977-10-11
Abstract
No abstract record available.
Inventors
- 👤 Simone Benjamin J De
- 👤 Palisades Pacific
- 👤 Donald F Crozat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:05
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/021; E03C1/023; F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/044; F16K11/0445; F16K11/06; F16K11/065; F16K11/07; F16K11/0716; E03C2201/00; E03C2201/30; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/268; Y10T137/2683; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |