Patent US3016920A successfully refreshed from Google Patents.
US3016920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid operated valve unit
Assignee: Specialties Development Corp
•
Filing: 1957-08-06
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Granted: 1962-01-16
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Expires: 1977-08-06
Abstract
No abstract record available.
Inventors
- 👤 William A V Thomsen
- 👤 Carrel B Morgan
- 👤 Bernard W Quail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:46
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0627; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US213030A
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US820910A
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US1202527A
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US1402718A
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US1758645A
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US2399843A
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US2404349A
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US2616658A
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US2682386A
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US2797061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |