US2555334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic surge-inhibitor valve
Assignee: Individual
•
Filing: 1949-05-06
•
Granted: 1951-06-05
•
Expires: 1969-05-06
Abstract
No abstract record available.
Inventors
- 👤 Robert A Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16K; F16K47/00; F16K47/08; F16K47/10; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7777; Y10T137/7781; Y10T137/7837; Y10T137/785; Y10T137/7852
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |