US2684332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor
Assignee: California Research LLC
•
Filing: 1950-12-29
•
Granted: 1954-07-20
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Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Gilson H Rohrback
- 👤 Dwite M Mccloud
- 👤 Willard R Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:50
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/184; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PELLETED CORROSION INHIBITING COMPOSITION CHARACTERIZED BY A HIGH CRUSHING STRENGTH CONSISTING ESSENTIALLY OF A UNIFORM COHERENT MIXTURE OF SODIUM ARSENITE AND ARSENOUS OXIDE, THE WEIGHT RATIO OF SODIUM ARSENITE TO ARSENOUS OXIDE BEING IN THE RANGE OF 1:10 TO 10:1.
Claim 2
Dependent Claim
41 words
A PELLETED CORROSION INHIBITING COMPOSITION CHARACTERIZED BY A HIGH CRUSHING STRENGTH CONSISTING ESSENTIALLY OF A UNIFORM COHERENT MIXTURE OF SODIUM ARSENITE AND ARSENOUS OXIDE, THE WEIGHT RATIO OF SODIUM ARSENITE TO ARSENOUS OXIDE BEING IN THE RANGE OF 1:10 TO 10:1.
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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |