US3580887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric products of epoxy resins and polyether disecondary amines
Assignee: 3M Co
•
Filing: 1969-04-21
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Granted: 1971-05-25
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Expires: 1989-04-21
Abstract
Abstract AN ELASTOMERIC REACTION PRODUCT OF AN EPOXY RESIN AND AT LEAST ONE AMINE HAVING A MINIMUM OF 2 AMINO HYDROGEN ATOMS PER MOLECULE, AT LEAST ONE PORTION OF SAID AMINE BEING A POLYETHER DISECONDARY AMINE.
Inventors
- 👤 Allen J Hubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
C; C08; C08L; C08L63/00
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |