US3126910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional flow restrictor valve
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/14; F16F9/145; Y; Y10; Y10S; Y10S137/00; Y10S137/904; Y10S251/00; Y10S251/902; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US342275A
Cited
AT10951B
Cited
US740473A
Cited
US928837A
Cited
US1151326A
Cited
US1540341A
Cited
US1835467A
Cited
US1802350A
Cited
US1893625A
Cited
US2095770A
Cited
US2997140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |