US3824148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion process and article obtained thereby
Assignee: Shell USA Inc
•
Filing: 1972-05-11
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Granted: 1974-07-16
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Expires: 1992-05-11
Abstract
Abstract AN ADHESIVELY BONDED ARTICLE IS OBTAINED BY DEPOSITING CERTAIN ANIONICALLY SUBSTITUTED BLOCK COPOLYMERS ON ONE SUBSTRATE, DEPOSITING A CATIONICALLY SUBSTITUTED BLOCK COPOLYMER ON A SECOND SUBSTRATE AND CONTACTING THE TWO POLYMERS IN THE PRESENCE OF WATER WHEREBY AN ADHESIVELY BONDED ARTICLE IS FORMED.
Inventors
- 👤 G Lopatin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:31
CPC Classifications
C; C09; C09J; C09J5/00; C09J5/04; B; B32; B32B; B32B27/00; C09J153/00; C09J153/02; C09J153/025; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536; Y10T428/31551; Y10T428/31645; Y10T428/31855; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 0
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |