Patent JPS5953103A successfully refreshed from Google Patents.
Patent US3032310A successfully refreshed from Google Patents.
US3032310A
Expired / Lapsed
US
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Fabricated gate valve and method of making same
Assignee: Crane Co
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Filing: 1959-02-24
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Granted: 1962-05-01
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 George E Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:28
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/10; F16K27/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |