US2557785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nondrip fluid-pressure-opened discharge nozzle valve
Assignee: GRAY Co Inc
•
Filing: 1945-11-29
•
Granted: 1951-06-19
•
Expires: 1965-11-29
Abstract
No abstract record available.
Inventors
- 👤 Four Arthur W Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
F; F16; F16K; F16K23/00; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4294; Y10T137/6198; Y10T137/6253; Y10T137/6362; Y10T137/7722; Y10T137/7781; Y10T137/7835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126982A
Cited
US569781A
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DE630222C
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US990351A
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US966999A
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US1162153A
Cited
US1507139A
Cited
US1735718A
Cited
AU1215528A
Cited
US1921761A
Cited
US1998056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |