Patent USRE32474E successfully refreshed from Google Patents.
Patent US3487852A successfully refreshed from Google Patents.
US3487852A
Expired / Lapsed
US
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Relief valve
Assignee: Snap Tite Inc
•
Filing: 1967-03-28
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Granted: 1970-01-06
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Expires: 1987-03-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Kikendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:36
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/10; F16K15/00; F16K15/02; F16K15/04; F16K15/044; F16K15/06; F16K15/063; F16K21/00; F16K21/04; F16K21/06; F16K21/10; F16K2200/00; F16K2200/30; F16K2200/302; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7852; Y10T137/7878; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |