US2809901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protectively coated metals and process of coating same
Assignee: Individual
•
Filing: 1952-10-22
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Granted: 1957-10-15
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Expires: 1972-10-22
Abstract
No abstract record available.
Inventors
- 👤 Grunt Max
- 👤 Charles L Borden
- 👤 Esbitt William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:14
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D3/00; B05D3/02; B05D3/0209; B05D3/0254; B05D3/10; B05D3/102; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31714
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR FORMING A PROTECTIVE COATING ON METAL WHICH COMPRISES CLEANING AND ROUGHENING THE SURFACE OF SAID METAL, COATING THE CLEAN, ROUGHENED SURFACE WITH AN ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF DRYING OILS, SEMI-DRYING OILS, AND DRYING OIL ACIDS HEATING SAID COATED METAL TO A TEMPERATURE BETWEEN ABOUT 350* F. AND ABOUT 680*F. TO CONVERT SAID ORGANIC MATERIAL TO A PYROGENIC POLYMER, AND THEN HEATING SAID POLYMERCOATED METAL TO A TEMPERATURE IN EXCESS OF 680* F. TO CARBONIZE ONLY THE OUTER LAYER OF SAID POLYMER.
Claim 2
Dependent Claim
88 words
A PROCESS FOR FORMING A PROTECTIVE COATING ON METAL WHICH COMPRISES CLEANING AND ROUGHENING THE SURFACE OF SAID METAL, COATING THE CLEAN, ROUGHENED SURFACE WITH AN ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF DRYING OILS, SEMI-DRYING OILS, AND DRYING OIL ACIDS HEATING SAID COATED METAL TO A TEMPERATURE BETWEEN ABOUT 350* F. AND ABOUT 680*F. TO CONVERT SAID ORGANIC MATERIAL TO A PYROGENIC POLYMER, AND THEN HEATING SAID POLYMERCOATED METAL TO A TEMPERATURE IN EXCESS OF 680* F. TO CARBONIZE ONLY THE OUTER LAYER OF SAID POLYMER.
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) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |