US2823146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of printing an electrical circuit on a chlorinated polymer, resultant article and printing ink
Assignee: 3M Co
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Filing: 1954-03-05
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Granted: 1958-02-11
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Expires: 1974-03-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick N Roberts
- 👤 Fred W West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:49
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/102; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; Y; Y10; Y10S; Y10S260/00; Y10S260/38; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24579
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A PROCESS FOR PRINTING AN ELECTRICAL CIRCUIT ON A CHLORINATED POLYMER WHICH COMPRISES APPLYING TO THE SURFACE OF THE CHLORINATED POLYMER AN INK WHICH COMPRISES AN ADMIXTURE OF A CONDUCTOR HAVING A PARTICLE SIZE BELOW 50 MICRONS AND A POLYMER OF TRIFLUOROCHLORORTHYLENE HAVING A SOFTENING POINT BELOW 150*C. AND MAINTAINING THE PRINTED SURFACE AT A TEMPERATURE BETWEEN ABOUT 100* C. AND ABOUT 375*C. FOR A PERIOD OF TIME BETWEEN ABOUT 1 SECOND AND ABOUT 30 MINUTES.
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |