US3801418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent anti-static device
Assignee: United States Atomic Energy Commission
•
Filing: 1972-03-16
•
Granted: 1974-04-02
•
Expires: 1992-03-16
Abstract
Abstract A transparent anti-static device having a generally transparent electrically conductive metal film on a substrate with a silicon monoxide film superimposed on the conductive film to eliminate buildup of static electricity. The coating can be deposited on a transparent substrate such as glass or plastic on, as an example, a window or safety shield, thereby permitting observation through the substrate of a tool or explosive being processed.
Inventors
- 👤 C Cornelis
- 👤 H Hanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:20
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3605; C03C17/3649; C03C17/3655; C03C17/3681; C09; C09K; C09K3/00; C09K3/16; F; F41; F41H; F41H13/00; H; H05; H05F; H05F3/00; H05F3/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
The window shield of claim 1 wherein said films together have between about 75% and about 90% optical transmission, a surface resistivity of about 100,000 ohms per square and an electrostatic field attenuation better than about 99.99%.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |