Patent US4409649A successfully refreshed from Google Patents.
Patent US3753936A successfully refreshed from Google Patents.
US3753936A
Expired / Lapsed
US
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Branched rubbery block copolymer adhesive
Assignee: Phillips Petroleum Co
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Filing: 1971-07-14
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Granted: 1973-08-21
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Expires: 1991-07-14
Abstract
Abstract A PRESSURE-SENSITIVE ADHESIVE SUITABLE FOR APPLICATION IN THE FORM OF A SOLUTION, DISPERSION, OR EMULSION IS PROVIDED WHICH COMPRISES, AS THE SOLE RUBBERY POLYMER PRESENT IN THE FORMULATION, A BRANCHED RUBBERY BLOCK COPOLYMER OF CONJUGATED DIENES AND VINYL AROMATIC HYDROCARBONS, HAVING TERMINAL RESINOUS BLOCKS, AND A CONJUGATED DIENE/VINYL AROMATIC HYDROCARBON RATIO RANGE OF FROM 60/40 TO 80/20.
Inventors
- 👤 O Marrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:48
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31931
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |