US2801447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating polyethylene structures
Assignee: EIDP Inc
•
Filing: 1953-04-07
•
Granted: 1957-08-06
•
Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:17
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29L; B29L2007/00; B29L2007/008; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR TREATING STRUCTURES OF POLYETHYLENE WHICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF A CONCENTRATED AQUEOUS SOLUTION OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF THE HALOGENS, AND HYDROCHLORIC, HYDROBROMIC, HYDROIODIC AND HYDROFLUIC ACIDS AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 25* TO ABOUT 95*C. FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND THEREAFTER NEUTRALIZING SAID STRUCTURES IN AN AQUEOUS ALKALINE BATH.
Claim 2
Dependent Claim
75 words
A PROCESS FOR TREATING STRUCTURES OF POLYETHYLENE WHICH COMPRISES SUBJECTING SAID STRUCTURES TO THE ACTION OF A CONCENTRATED AQUEOUS SOLUTION OF AN AGENT SELECTED FROM THE GROUP CONSISTING OF THE HALOGENS, AND HYDROCHLORIC, HYDROBROMIC, HYDROIODIC AND HYDROFLUIC ACIDS AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 25* TO ABOUT 95*C. FOR A PERIOD OF TIME SUFFICIENT TO RENDER SAID STRUCTURES ADHERENT TO PRINTING INK, AND THEREAFTER NEUTRALIZING SAID STRUCTURES IN AN AQUEOUS ALKALINE BATH.
References Cited (Backward Citations)
US2400720A
Cited
US2502841A
Cited
US2499421A
Cited
US2622056A
Cited
US2639998A
Cited
US2612480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |