US2825354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot valve
Assignee: Honeywell Inc
•
Filing: 1954-03-16
•
Granted: 1958-03-04
•
Expires: 1974-03-16
Abstract
No abstract record available.
Inventors
- 👤 Bois Robert Clark Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:46
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; F15; F15B; F15B9/00; F15B9/02; F15B9/08; G; G05; G05B; G05B11/00; G05B11/44; G05B11/48; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
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) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |