US2690407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preventing accumulation of static charges
Assignee: RCA Corp
•
Filing: 1951-05-25
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Granted: 1954-09-28
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Expires: 1971-05-25
Abstract
No abstract record available.
Inventors
- 👤 Pessel Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:33
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/044; C08J2429/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A METHOD OF GIVING A SURFACE OF A BODY MADE OF SYNTERTIC RESINOUS MATERIAL ANTI-STATIC PROPERTIES, SAID METHOD COMPRISING PROVIDING SAID SURFACE WITH A FILM COMPOSED OF A WATER-INSOLUBLE, PARTIALLY HYDROLYZED POLYVINYL ALCOHOL, AND AN ACETATE OF A LONG CHAIN AMINE OF WHICH THE CARBON CHAIN CONTAINS 6-18 CARBON ATOMS, SAID ALCOHOL AND SAID ACETATE BEING PRESENT WITHIN THE RANGE OF RATIOS OF 50 TO 1 AND 1 TO 200.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |