Patent US2955797A successfully refreshed from Google Patents.
US2955797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid valve mechanism
Assignee: Liquid Controls Corp
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Filing: 1955-11-15
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Granted: 1960-10-11
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Expires: 1975-11-15
Abstract
No abstract record available.
Inventors
- 👤 Henry R Billeter
- 👤 George B Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:47
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US524049A
Cited
US964735A
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AT28396B
Cited
US915624A
Cited
FR419004A
Cited
US1216352A
Cited
US1935299A
Cited
US2311292A
Cited
GB694155A
Cited
US2795391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |