Patent US2590569A successfully refreshed from Google Patents.
US2590569A
Expired / Lapsed
US
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Gas valve
Assignee: Harper Wyman Co
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Filing: 1945-06-21
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Granted: 1952-03-25
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Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Vincent C Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:48
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/10; F16K5/103; F16K5/106; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87378; Y10T137/87386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512892A
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US671678A
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FR332997A
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US755299A
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US812627A
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US805741A
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US1261469A
Cited
CH81665A
Cited
US2257886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |