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Patent US3473560A successfully refreshed from Google Patents.
US3473560A
Expired / Lapsed
US
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Shutting valve for fluids,in particular to be used for bomb shelters
Assignee: Individual
•
Filing: 1966-04-22
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Granted: 1969-10-21
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Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 August Borje Eliasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
A; A62; A62B; A62B13/00; F; F16; F16K; F16K17/00; F16K17/006; Y; Y10; Y10S; Y10S454/00; Y10S454/902; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531304A
Cited
US1075662A
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US1364001A
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US1609472A
Cited
US2673450A
Cited
US3140648A
Cited
CH357250A
Cited
US3129648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |