US2739870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and sheet material for inhibition of corrosion of metals
Assignee: Daubert Chemical Co Inc
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Filing: 1950-09-15
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Granted: 1956-03-27
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Expires: 1970-09-15
Abstract
No abstract record available.
Inventors
- 👤 Senkus Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:39
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A VAPOR PHASE INHIBITING COMPOSITION FOR INHIBITING CORROSIVE ATTACK ON METAL BY ELEMENTS NORMALLY EXISTING IN THE ATMOSPHERE COMPRISING AS ESSENTIAL INGREDIENTS, AN ORGANIC AMIDE, AN INORGANIC METAL NITRITE, AND A SALT OF BENZOIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, LITHIUM, CALCIUM, MAGNESIUM, BARIUM, ALUMINUM AND IRON, SAID INGREDIENTS BEING PRESENT IN THE RATIO OF ABOUT 1 PART BY WEIGHT OF SAID NITRITE TO 0.05-20 PARTS BY WEIGHT EACH OF SAID AMIDE AND SAID SALT OF BENZOIC ACID.
Claim 2
Dependent Claim
81 words
A VAPOR PHASE INHIBITING COMPOSITION FOR INHIBITING CORROSIVE ATTACK ON METAL BY ELEMENTS NORMALLY EXISTING IN THE ATMOSPHERE COMPRISING AS ESSENTIAL INGREDIENTS, AN ORGANIC AMIDE, AN INORGANIC METAL NITRITE, AND A SALT OF BENZOIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, LITHIUM, CALCIUM, MAGNESIUM, BARIUM, ALUMINUM AND IRON, SAID INGREDIENTS BEING PRESENT IN THE RATIO OF ABOUT 1 PART BY WEIGHT OF SAID NITRITE TO 0.05-20 PARTS BY WEIGHT EACH OF SAID AMIDE AND SAID SALT OF BENZOIC ACID.
References Cited (Backward Citations)
US2334158A
Cited
GB588864A
Cited
GB600328A
Cited
US2504200A
Cited
GB596160A
Cited
US2521311A
Cited
US2629649A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |