US3013766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical valve
Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1958-01-13
•
Granted: 1961-12-19
•
Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Percy B Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:45
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US870487A
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US1643753A
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DE530687C
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US2001271A
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US2203989A
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US2274663A
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US2600898A
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US2630832A
Cited
US2654924A
Cited
GB684621A
Cited
FR1155199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |