US2965123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricated plug valve
Assignee: Homestead Valve Manufacturing Co
•
Filing: 1954-10-26
•
Granted: 1960-12-20
•
Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 William L Hulslander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:00
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/22; F16K5/225; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4393; Y10T137/44; Y10T137/4407; Y10T137/4414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2389670A
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US2616657A
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US2651490A
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US2552376A
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US2718665A
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US2661019A
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US2747905A
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US2699798A
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US2715412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |