Patent US3058487A successfully refreshed from Google Patents.
US3058487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slush pump valves
Assignee: Individual
•
Filing: 1960-10-17
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Granted: 1962-10-16
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Helling
- 👤 George R Lay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:03
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1065; F16; F16K; F16K15/00; F16K15/14; F16K15/148; F16K2200/00; F16K2200/20; F16K2200/203; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7863; Y10T137/7866; Y10T137/7867; Y10T137/7868; Y10T137/7879; Y10T137/7888; Y10T137/789
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US157963A
Cited
GB190308620A
Cited
US1438161A
Cited
US1408724A
Cited
US2027859A
Cited
US2859771A
Cited
US2936779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |