US2776263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitors for deuterium exchange process
Assignee: Individual
•
Filing: 1945-04-16
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Granted: 1957-01-01
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Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Hiskey
- 👤 Dwayne T Vier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:14
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/148; C23F11/12; C23F11/124; C23F11/126; C23F11/149; Y; Y10; Y10S; Y10S423/00; Y10S423/07; Y10S423/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS FOR THE PREVENTION OF CORROSION OF IRON APPARATUS BY A MIXTURE OF HYROGEN SULFIDE AND WATER WHICH COMPRISES INTRODUCING AN ORGANIC INHIBITOR SELECTED FROM THE GROUP CONSISTING OF QUINOLINE, ISOQUINOLINE, PHENYLTHYDRAZINE, TANNIC ACID, AND PIPERLINE INTO THE MIXTURE IN CONTACT WITH SAID APPARATUS.
Claim 2
Dependent Claim
45 words
A PROCESS FOR THE PREVENTION OF CORROSION OF IRON APPARATUS BY A MIXTURE OF HYROGEN SULFIDE AND WATER WHICH COMPRISES INTRODUCING AN ORGANIC INHIBITOR SELECTED FROM THE GROUP CONSISTING OF QUINOLINE, ISOQUINOLINE, PHENYLTHYDRAZINE, TANNIC ACID, AND PIPERLINE INTO THE MIXTURE IN CONTACT WITH SAID APPARATUS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |