Patent US3375183A successfully refreshed from Google Patents.
US3375183A
Expired / Lapsed
US
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Apparatus for minimizing corrosion of metals
Assignee: ConocoPhillips Co
•
Filing: 1964-09-23
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Granted: 1968-03-26
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 William P Banks
- 👤 Hutchison Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3258612A
Cited
US3061773A
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US3197755A
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US3143670A
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US3280020A
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US3317415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |