US2671007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective coating for ferrous metal surfaces
Assignee: Pipeline Protection Co
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Filing: 1948-10-02
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Granted: 1954-03-02
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Marshall C Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:34
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T442/00; Y10T442/20; Y10T442/2221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROTECTIVE SHEETING FOR METALLIC OR OTHER SURFACES COMPRISING A FABRIC STRIP EMBEDDED IN A PLASTIC COMPOSITION, SAID COMPOSITION COMPRISING A MIXTURE OF PETROLATUM, A CLAY MATERIAL THAT SWELLS WHEN IN CONTACT WITH MOISTURE, AND A MIXTURE OF POTASSIUM DICHROMATE AND SODIUM PHOSPHATE, SAID MIXTURE OF POTASSIUM DICHROMATE AND SODIUM PHOSPHATE BEING IN SUFFICIENT STRENGHT TO REACT WITH SAID FABRIC IN THE PRESENCE OF MOISTURE TO CAUSE THE DETERIORATION OF SAID FABRIC.
Claim 2
Dependent Claim
72 words
A PROTECTIVE SHEETING FOR METALLIC OR OTHER SURFACES COMPRISING A FABRIC STRIP EMBEDDED IN A PLASTIC COMPOSITION, SAID COMPOSITION COMPRISING A MIXTURE OF PETROLATUM, A CLAY MATERIAL THAT SWELLS WHEN IN CONTACT WITH MOISTURE, AND A MIXTURE OF POTASSIUM DICHROMATE AND SODIUM PHOSPHATE, SAID MIXTURE OF POTASSIUM DICHROMATE AND SODIUM PHOSPHATE BEING IN SUFFICIENT STRENGHT TO REACT WITH SAID FABRIC IN THE PRESENCE OF MOISTURE TO CAUSE THE DETERIORATION OF SAID FABRIC.
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) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |