US3200057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoretic coating process
Assignee: Ford Motor Co
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Filing: 1960-12-27
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Granted: 1965-08-10
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gilbert L Burnside
- 👤 George E F Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
C; C25; C25D; C25D13/00; C25D13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A METHOD OF APPLYING A COATING TO A CONDUCTING SURFACE OF AN ARTICLE COMPRISING THE STEPS OF CAUSING THE SURFACE OF SAID ARTICLE TO CONTACT AN AQUEOUS BATH HAVING ORGANIC FILM-FORMING MATERIAL DISPERSED THEREIN, SAID ARTICLE SERVING AS A FIRST ELECTRODE, CAUSING A SECOND ELECTRODE TO CONTACT SAID AQUEOUS BATH, AND CAUSING A DIRECT ELECTRIC CURRENT TO FLOW BETWEEN SAID FIRST AND SECOND ELECTRODES AND THROUGH SAID AQUEOUS BATH AT AN ELETRICAL POTENTIAL SUBSTANTIALLY ABOVE THE VALUE OF AT WHICH THE ELECTROLYSIS OF WATER OCCURS UNTIL A COATING OF SAID FILM-FORMING MATERIAL IS ELECTRICALLY DEPOSITED UPON SAID ARTICLE FROM SAID AQUEOUS BATH, THE STEP OF CAUSING THE DIRECTION OF FLOW OF THE DIRECT ELECTRIC CURRENT BETWEEN SAID ARTICLE AND SAID BATH TO BE REVERSED FOR A TIME SUFFICIENT TO REMOVE FROM THE SURFACE OF SAID ELECTRICALLY DEPOSITED COATING FILM-FORMING
Claim 2
Dependent Claim
140 words
IN A METHOD OF APPLYING A COATING TO A CONDUCTING SURFACE OF AN ARTICLE COMPRISING THE STEPS OF CAUSING THE SURFACE OF SAID ARTICLE TO CONTACT AN AQUEOUS BATH HAVING ORGANIC FILM-FORMING MATERIAL DISPERSED THEREIN, SAID ARTICLE SERVING AS A FIRST ELECTRODE, CAUSING A SECOND ELECTRODE TO CONTACT SAID AQUEOUS BATH, AND CAUSING A DIRECT ELECTRIC CURRENT TO FLOW BETWEEN SAID FIRST AND SECOND ELECTRODES AND THROUGH SAID AQUEOUS BATH AT AN ELETRICAL POTENTIAL SUBSTANTIALLY ABOVE THE VALUE OF AT WHICH THE ELECTROLYSIS OF WATER OCCURS UNTIL A COATING OF SAID FILM-FORMING MATERIAL IS ELECTRICALLY DEPOSITED UPON SAID ARTICLE FROM SAID AQUEOUS BATH, THE STEP OF CAUSING THE DIRECTION OF FLOW OF THE DIRECT ELECTRIC CURRENT BETWEEN SAID ARTICLE AND SAID BATH TO BE REVERSED FOR A TIME SUFFICIENT TO REMOVE FROM THE SURFACE OF SAID ELECTRICALLY DEPOSITED COATING FILM-FORMING
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |