Patent US3042072A successfully refreshed from Google Patents.
US3042072A
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US
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Diaphragm type valve structure
Assignee: General Gas Light Co
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Filing: 1959-02-18
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Granted: 1962-07-03
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Expires: 1979-02-18
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Humphrey
- 👤 Stanley M Loveless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:54
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/022; F15; F15C; F15C3/00; F15C3/04; F16K11/04; F16K11/048; F16K31/00; F16K31/12; F16K31/36; F16K31/365; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1679614A
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US1921092A
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US2019766A
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US2180320A
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US2537308A
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US2795239A
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US2658523A
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US2875784A
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US2912009A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |