US3021866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety control system for fluid distribution and apparatus
Assignee: ECONOMY GOVERNOR Co
•
Filing: 1958-07-28
•
Granted: 1962-02-20
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Harold E Handley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:58
CPC Classifications
F; F17; F17D; F17D5/00; F16; F16K; F16K17/00; F16K17/02; F16K17/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7725
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2733729A
Cited
US2749926A
Cited
US1916635A
Cited
US2091482A
Cited
DE952341C
Cited
US2777456A
Cited
US2834371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |