US3275486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing insulating material from electrical conductors
Assignee: Methode Electronics Inc
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Filing: 1963-07-19
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Granted: 1966-09-27
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Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Duane A Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:41
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0017; H05K3/002; H02; H02G; H02G1/00; H02G1/12; H02G1/1287; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0145; H05K2203/00; H05K2203/07; H05K2203/0779; H05K2203/0786; H05K2203/0789; H05K3/40; H05K3/4092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE PROCESS OF REMOVING POLYESTER INSULATING MATERIAL FROM COPPER CONDUCTIVE ELEMENTS OF A FLEXIBLE WIRING UNIT LEAVING A CLEAN, SHARP END MARGIN ON THE REMAINING POLYESTER MATERIAL WHICH COMPRISES: (A) MASKING AN AREA OF A FLEXIBLE WIRING UNIT FORMED BY COPPER CONDUCTIVE ELEMENTS ENCAPSULATED IN POLYESTER INSULATING MATERIAL ADJACENT THE INTENDED POINTS OF ELECTRICAL CONTACT WITH LEAD FOIL HAVING ONE OF ITS FACES COATED WITH A PRESSURE SENSITIVE ADHESIVE BY PLACING THE ADHESIVE SURFACE OF THE MASKING FOIL AGAINST THE POLYESTER AND PRESSING THE FOIL INTO INTIMATE CONTACT WITH THE SURFACE OF SAID UNIT. (B) FLOODING THE AREA OF POLYESTER TO BE REMOVED WITH SULFURIC ACID HAVING A CONCENTRATION OF BETWEEN ABOUT 1.53 TO 1.84*BE. AT A TEMPERATURE OF BETWEEN 135* F. AND THE BOILING POINT OF THE ACID. (C) REMOVING THE UNIT FORM CONTACT WITH SAID ACID BEFORE DELECTERIOUS ATTACH ON THE LEAD AND COPPER BEGINS, (D) NEUTRALIZING ANY ADHERENT ACID AND DRYING THE UNIT, AND
Claim 2
Dependent Claim
157 words
THE PROCESS OF REMOVING POLYESTER INSULATING MATERIAL FROM COPPER CONDUCTIVE ELEMENTS OF A FLEXIBLE WIRING UNIT LEAVING A CLEAN, SHARP END MARGIN ON THE REMAINING POLYESTER MATERIAL WHICH COMPRISES: (A) MASKING AN AREA OF A FLEXIBLE WIRING UNIT FORMED BY COPPER CONDUCTIVE ELEMENTS ENCAPSULATED IN POLYESTER INSULATING MATERIAL ADJACENT THE INTENDED POINTS OF ELECTRICAL CONTACT WITH LEAD FOIL HAVING ONE OF ITS FACES COATED WITH A PRESSURE SENSITIVE ADHESIVE BY PLACING THE ADHESIVE SURFACE OF THE MASKING FOIL AGAINST THE POLYESTER AND PRESSING THE FOIL INTO INTIMATE CONTACT WITH THE SURFACE OF SAID UNIT. (B) FLOODING THE AREA OF POLYESTER TO BE REMOVED WITH SULFURIC ACID HAVING A CONCENTRATION OF BETWEEN ABOUT 1.53 TO 1.84*BE. AT A TEMPERATURE OF BETWEEN 135* F. AND THE BOILING POINT OF THE ACID. (C) REMOVING THE UNIT FORM CONTACT WITH SAID ACID BEFORE DELECTERIOUS ATTACH ON THE LEAD AND COPPER BEGINS, (D) NEUTRALIZING ANY ADHERENT ACID AND DRYING THE UNIT, AND
References Cited (Backward Citations)
GB730958A
Cited
US2979387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |