US2878519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treatment of polyethylene structures
Assignee: EIDP Inc
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Filing: 1955-02-11
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Granted: 1959-03-24
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Expires: 1975-02-11
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR TREATING STRUCTURES OF POLYRTHYLENE WHIICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF AN AGENT SELECTED FROM THE GROUP OF OXY COMPOUNDS CONSISTING OF AQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE, NITROUS ACID, AND ALKALINE HYPOCHLORITES, CONCENTRATED NITRIC ACID, AND MIXTURES OF CONCENTRATED NITRIC ACID AND SULFURIC ACID CONTAINING AT LEAST 50% BY WEIGHT OF NITRIC ACID, FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 25* TO ABOUT 95*C.
Claim 2
Dependent Claim
86 words
A PROCESS FOR TREATING STRUCTURES OF POLYRTHYLENE WHIICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF AN AGENT SELECTED FROM THE GROUP OF OXY COMPOUNDS CONSISTING OF AQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE, NITROUS ACID, AND ALKALINE HYPOCHLORITES, CONCENTRATED NITRIC ACID, AND MIXTURES OF CONCENTRATED NITRIC ACID AND SULFURIC ACID CONTAINING AT LEAST 50% BY WEIGHT OF NITRIC ACID, FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 25* TO ABOUT 95*C.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |