US2675339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of polyethylene with resinous polymeric aromatic phosphoric ester adhesives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1950-06-30
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Granted: 1954-04-13
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Zenftman Henryk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:13
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08G; C08G79/00; C08G79/02; C08G79/04; C09; C09J; C09J185/00; C09J185/02; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3886
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
A METHOD FOR FIRMLY BONDING A SURFACE TO A SURFACE OF A POLYETHYLENE OBJECT WHICH COMPRISES INTERPOSING A FLUID LAYER COMPRISING A RESINOUS POLYMERIC AROMATIC PHOSPHORIC ESTER CONTAINING A RECURRENT GROUPING WHEREIN A PENTAVALENT PHOSPHORUS ATOM IS BOUND TO A TERMINAL OXYGEN ATOM, TO A TERMINAL OXYARYL GROUP, AND TO EACH OF TWO SIMILAR PHOSPHORUS ATOMS THROUGH THE OXYGEN ATOMS OF THE RADICAL OF AN AROMATIC COMPOUND HAVING TWO NUCLEAR OXYGEN ATOMS ATTACHED TO NON-ADJACENT CARBON ATOMS OF SAID AROMATIC COMPOUND BETWEEN SAID SURFACES AND SOLIDIFYING SAID FLUID LAYER WHILE SAID SURFACES ARE MAINTAINED CLOSELY ADJACENT TO ONE ANOTHER.
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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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |