US2573940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of metal coating and oil finishing composition therefor
Assignee: Shell Development Co
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Filing: 1947-07-12
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Granted: 1951-11-06
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Expires: 1967-07-12
Abstract
No abstract record available.
Inventors
- 👤 Fuchs George H Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:07
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/08; C23C2/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
A COMPOSITION SUITABLE FOR AIDING IN FORMING AN ADHERENT AND SMOOTH TIN COATING ON FERROUS SURFACES, CONSISTING ESSENTIALLY OF A MIXTURE OF SLOP WAX FREE FROM AROMATICS AND PARTIALLY HYDROGENATED FISH OIL DISTILLATES SAID MIXTURE HAVING AN ACID NUMBER OF FROM ABOUT 4 TO 10 AND A MINOR AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST DETERIORATION OF PHENUL-A-NAPHTHYLAMINE.
Claim 2
Dependent Claim
58 words
A COMPOSITION SUITABLE FOR AIDING IN FORMING AN ADHERENT AND SMOOTH TIN COATING ON FERROUS SURFACES, CONSISTING ESSENTIALLY OF A MIXTURE OF SLOP WAX FREE FROM AROMATICS AND PARTIALLY HYDROGENATED FISH OIL DISTILLATES SAID MIXTURE HAVING AN ACID NUMBER OF FROM ABOUT 4 TO 10 AND A MINOR AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST DETERIORATION OF PHENUL-A-NAPHTHYLAMINE.
Claim 3
Dependent Claim
130 words
IN A METHOD OF METAL COATING OF METAL SURFACES, WHEREIN SAID METAL AND SURFACES ARE FIRST CLEANED AND PICKLED AND WHEREIN SAID CLEANED METAL IS PASSED SUCCESSIVELY FIRST THROUGH A MOLTEN FLUX BATH, THEN THROUGH A MOLTEN BATH OF A METAL SELECTED FROM THE CLASS CONSISTING OF MOLTEN TIN, MOLTEN LEAD AND A MIXTURE OF LEAD AND TIN AND THEN PASSING SAID TREATED METAL THROUGH AN OLEGINOUS WAXY COMPOSITON MAINTAINED AT AN ELEVATED TEMPERATURE, THE IMPROVEMENT WHICH COMPRISES USING AS SAID OLEAGINOUS WAXY COMPOSITION A MIXTURE CONSISTING ESSENTIALLY OF SLOP WAX AND HYDROGENATED FISH OIL DISTILLATE, SAID MIXTURE HAVING AN ACID NUMBER OF FROM 4 TO 10, A MINOR AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST DETERIORATION OF PHENYL-A-NAPHTHYLAMINE AND A MINOR AMOUNT, SUFFIENENT TO AID DRAINING OF DIMETHYL SILICONE.
Claim 4
Dependent Claim
130 words
IN A METHOD OF METAL COATING OF METAL SURFACES, WHEREIN SAID METAL AND SURFACES ARE FIRST CLEANED AND PICKLED AND WHEREIN SAID CLEANED METAL IS PASSED SUCCESSIVELY FIRST THROUGH A MOLTEN FLUX BATH, THEN THROUGH A MOLTEN BATH OF A METAL SELECTED FROM THE CLASS CONSISTING OF MOLTEN TIN, MOLTEN LEAD AND A MIXTURE OF LEAD AND TIN AND THEN PASSING SAID TREATED METAL THROUGH AN OLEGINOUS WAXY COMPOSITON MAINTAINED AT AN ELEVATED TEMPERATURE, THE IMPROVEMENT WHICH COMPRISES USING AS SAID OLEAGINOUS WAXY COMPOSITION A MIXTURE CONSISTING ESSENTIALLY OF SLOP WAX AND HYDROGENATED FISH OIL DISTILLATE, SAID MIXTURE HAVING AN ACID NUMBER OF FROM 4 TO 10, A MINOR AMOUNT SUFFICIENT TO STABILIZE THE COMPOSITION AGAINST DETERIORATION OF PHENYL-A-NAPHTHYLAMINE AND A MINOR AMOUNT, SUFFIENENT TO AID DRAINING OF DIMETHYL SILICONE.
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) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |