US2935418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating preformed polyethylene with an electrical glow discharge
Assignee: Olin Corp
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Filing: 1953-06-03
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Granted: 1960-05-03
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Expires: 1973-06-03
Abstract
No abstract record available.
Inventors
- 👤 George H Berthold
- 👤 Jr Anderson Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:13
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/10; D; D06; D06M; D06M10/00; D06M10/02; D06M10/025; B29K; B29K2623/00; B29K2623/04; B29K2623/06; D06M2200/00; D06M2200/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN THE TREATMENT OF A PERFORMED POLYETHYLENE ARTICLE TO RENDER A SURFACE THEREOF ADHERENT TO COATING COMPOSITIONS, A METHOD COMPRISING THE STEPS OF ESTABLISHING AN ELECTRICAL GLOW DISCHARGE HAVING A FREQUENCY OF 0.5 TO 17.5 KILOCYCLES PER SECOND IN A NARROW ELONGATED FIELD, AND PASSING SAID ARTICLE THROUGH SAID DISCHARGE IN A DIRECTION SUBSTANTIALLY TRANSVERSE TO SAID FIELD, AT A RATE SUCH THAT A SURFACE OF SAID ARTICLE IS EXPOSED TO THE SAID DISCHARGE FOR A PERIOD NOT EXCEEDING ABOUT A HUNDREDTH OF A SECOND.
Claim 2
Dependent Claim
85 words
IN THE TREATMENT OF A PERFORMED POLYETHYLENE ARTICLE TO RENDER A SURFACE THEREOF ADHERENT TO COATING COMPOSITIONS, A METHOD COMPRISING THE STEPS OF ESTABLISHING AN ELECTRICAL GLOW DISCHARGE HAVING A FREQUENCY OF 0.5 TO 17.5 KILOCYCLES PER SECOND IN A NARROW ELONGATED FIELD, AND PASSING SAID ARTICLE THROUGH SAID DISCHARGE IN A DIRECTION SUBSTANTIALLY TRANSVERSE TO SAID FIELD, AT A RATE SUCH THAT A SURFACE OF SAID ARTICLE IS EXPOSED TO THE SAID DISCHARGE FOR A PERIOD NOT EXCEEDING ABOUT A HUNDREDTH OF A SECOND.
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) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |