US2806671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid valve
Assignee: FMC Corp
•
Filing: 1953-01-07
•
Granted: 1957-09-17
•
Expires: 1973-01-07
Abstract
No abstract record available.
Inventors
- 👤 Howard H Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:55
CPC Classifications
A; A01; A01K; A01K39/00; A01K39/02; A01K39/022; F; F16; F16K; F16K21/00; F16K21/04; F16K21/16; F16K21/165; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6184; Y10T137/6188; Y10T137/7287; Y10T137/7339; Y10T137/7355; Y10T137/8593; Y10T137/87917; Y10T137/87981; Y10T137/87997; Y10T137/88005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23447E
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US1248957A
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US1350885A
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US1512806A
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US1999400A
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US2086265A
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GB613813A
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US2528747A
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US2634755A
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US2716535A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |