US2811456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective film for ferrous metals
Assignee: Victor Chemical Works
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Filing: 1955-02-28
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Granted: 1957-10-29
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 William B Coleman
- 👤 Forrest A Goff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:55
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23F; C23F11/00; C23F11/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31703; Y10T428/31714; Y10T428/31971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COMPOSITION SUITABLE FOR USE IN PRODUCING A WATERSOLUBLE, SUBSTANTIALLY CLEAR, UNIFORM, NONHYGROSCOPIC, NONTACKY, NONCRYSTALLINE RUST PREVENTION COATING ON FERROUS METAL OBJECTS CONSISTING ESSENTIALLY OF: 13-14% BY WEIGHT OF AMMONIUM SALT OF AN AMIDOPOLYPHOSPHATE; 12-14% BY WEIGHT OF MONOAMMONIUM PHOSPHATE; 0.81.5% OF A MEMBER OF THE GROUP CONSISTING OF CARBOXYMETHYL CELLULOSE, NATURAL GUMS, STARCH, POLYVINYL ALCOHOL, AND ALGINATES WHICH SERVE TO CONTROL THE VISCOSITY AND FILM-FORMING PROPERTIES OF THE COMPOSITION; 74-69.5% BY WEIGHT WATER; AND DIALKYL ALKALI METAL SULFOSUCCINATE IN AN AMOUNT NOT GREATER THAN 1% BY WEIGHT.
Claim 2
Dependent Claim
88 words
A COMPOSITION SUITABLE FOR USE IN PRODUCING A WATERSOLUBLE, SUBSTANTIALLY CLEAR, UNIFORM, NONHYGROSCOPIC, NONTACKY, NONCRYSTALLINE RUST PREVENTION COATING ON FERROUS METAL OBJECTS CONSISTING ESSENTIALLY OF: 13-14% BY WEIGHT OF AMMONIUM SALT OF AN AMIDOPOLYPHOSPHATE; 12-14% BY WEIGHT OF MONOAMMONIUM PHOSPHATE; 0.81.5% OF A MEMBER OF THE GROUP CONSISTING OF CARBOXYMETHYL CELLULOSE, NATURAL GUMS, STARCH, POLYVINYL ALCOHOL, AND ALGINATES WHICH SERVE TO CONTROL THE VISCOSITY AND FILM-FORMING PROPERTIES OF THE COMPOSITION; 74-69.5% BY WEIGHT WATER; AND DIALKYL ALKALI METAL SULFOSUCCINATE IN AN AMOUNT NOT GREATER THAN 1% BY WEIGHT.
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |