Patent US3658740A successfully refreshed from Google Patents.
US3658740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesives
Assignee: Phillips Petroleum Co
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Filing: 1969-12-05
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Granted: 1972-04-25
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Expires: 1989-12-05
Abstract
Abstract ADHESIVE COMPOSITIONS ARE PREPARED BY COMBINING BRANCHED BLOCK COPOLYMERS WITH LINEAR BLOCK COPOLYMERS. OR BLOCK COPOLYMERS, TACKIFIERS, AND ORGANIC SOLVENTS.
Inventors
- 👤 Oren L Marrs
- 👤 Billy D Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:35
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |