Patent US3490425A successfully refreshed from Google Patents.
US3490425A
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System for pressurizing and relieving liquids in conduits
Assignee: Societe des Procedes Modernes dInjection SOPROMI
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Filing: 1967-09-28
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Granted: 1970-01-20
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Expires: 1987-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jacques Bassot
- 👤 Louis Monpetit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F02; F02D; F02D41/00; F02D41/30; F02D41/3005; F02D41/32; F02M; F02M57/00; F02M57/02; F02D41/20; F02D2041/2068; F02D2041/2079; F02D2250/00; F02D2250/31; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2863437A
Cited
US3193733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |