US3012583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-seated valve for high temperature work
Assignee: Manning Maxwell and Moore Inc
•
Filing: 1960-07-25
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Granted: 1961-12-12
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Gorgens
- 👤 Goff Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:39
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE559005A
Cited
US1165315A
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US1575834A
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US1872157A
Cited
US1851016A
Cited
US2781772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |