US2879177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of surface treating polyethylene structures and resultant article
Assignee: Union Carbide Corp
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Filing: 1954-08-17
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Granted: 1959-03-24
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Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Nelson
- 👤 Walter K Vollmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:34
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/048; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C09J7/241; C09J7/243; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
POLYETHYLENE ARTICLE CHARACTERIZED BY A SURFACE OF POLYETHYLENE CONTAINING -SO2OH GROUPS IN AMOUNT DETECTABLE BY INFRA-RED SPECTROSCOPIC ANALYSIS, SAID SURFACE BEING FREE FROM CHLORINE AND CHLOROSULFONIC GROUPS.
Claim 2
Dependent Claim
27 words
POLYETHYLENE ARTICLE CHARACTERIZED BY A SURFACE OF POLYETHYLENE CONTAINING -SO2OH GROUPS IN AMOUNT DETECTABLE BY INFRA-RED SPECTROSCOPIC ANALYSIS, SAID SURFACE BEING FREE FROM CHLORINE AND CHLOROSULFONIC GROUPS.
References Cited (Backward Citations)
US2632921A
Cited
US2639998A
Cited
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 |