US2732170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16K; F16K3/00; F16K3/02; F16K3/0227; F16K3/0281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE324654C
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US1502473A
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US1567537A
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GB315469A
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US1836976A
Cited
US2063655A
Cited
US2000853A
Cited
FR802407A
Cited
US2218145A
Cited
US2370751A
Cited
US2542254A
Cited
US2597474A
Cited
US2660398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |