Patent US3677816A successfully refreshed from Google Patents.
US3677816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making electrically conductive layer of copper iodide
Assignee: Panasonic Holdings Corp
•
Filing: 1968-10-22
•
Granted: 1972-07-18
•
Expires: 1988-10-22
Abstract
Abstract A TRANSPARENT AND ELECTRICALLY CONDUCING COATING IS PROVIDED ON A SURFACE OF A SOLID INERT INSULTATING SUBSTRATE BY EXPOSING SAID SURFACE TO AN ATMOSPHERE OF COPPER METAL VAPOR SO AS TO FORM A THIN LAYER OF COPPER METAL THEREON AND THEN CONTACTING THE SAID THIN LAYER OF COPPER METAL WITH AN IODINE-CONTAINING SOLUTION SO AS TO CONVERT THE THIN LAYER OF COPPER METAL INTO A THIN LAYER OF COPPER IODIDE. MEANS FOR CARRYING OUT THE METHOD ABOVE DESCRIBED ARE SET FORTH.
Inventors
- 👤 Yoshiki Hayashi
- 👤 Hiromi Sasaki
- 👤 Toichi Matsumura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C01; C01G; C01G3/00; C01G3/04; C23C14/06; C23C14/0694; C23C14/14; C23C14/20; C23C14/58; C23C14/5846; C23C22/00; C23C22/02; G; G03; G03G; G03G5/00; G03G5/10; G03G5/104; H; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |