US2855950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure reducing and regulating valves for use in association with containers for gases under high pressures
Assignee: Individual
•
Filing: 1954-11-19
•
Granted: 1958-10-14
•
Expires: 1974-11-19
Abstract
No abstract record available.
Inventors
- 👤 Phillips Robert Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:31
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/781; Y10T137/7811
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |