US2863473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced valve
Assignee: VINCENT W ECKEL
•
Filing: 1955-02-28
•
Granted: 1958-12-09
•
Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jack L Gantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0651; F16K31/0665; F16K39/00; F16K39/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87298; Y10T137/87306; Y10T137/87314; Y10T137/87378; Y10T137/87394; Y10T137/87507
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US566108A
Cited
US2279243A
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US2307949A
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US2554390A
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US2543455A
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US2638119A
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US2623541A
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US2638118A
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US2781997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |