Patent US3740414A successfully refreshed from Google Patents.
US3740414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter
Assignee: 3M Co
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Filing: 1972-01-17
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Granted: 1973-06-19
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Expires: 1992-01-17
Abstract
Abstract A WATER-SOLUBLE RUBBERY POLYMER, FORMED BY THE REACTION OF AN EPOXIDIZED WATER-INSOLUNLE NUETRAL RUBBERY POLYMER AND A WATER-SOLUBLE SECONDARY MONO AMINE, HAS PARTICULAR UTILITY IN THE FORMULATION OF WATER-SOLUBLE PRESSURE-SENSITIVE ADHESIVE AND COATINGS WHICH RENDER HYDROPHOBIC SUBSTRATES HYDROPHILIC.
Inventors
- 👤 M Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:10
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/40
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |