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US3320209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resins
Assignee: Dow Chemical Co
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Filing: 1962-10-11
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Granted: 1967-05-16
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Bart J Bremmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/36; C08; C08G; C08G59/00; C08G59/02; C08G59/10; C08G59/18; C08G59/20; C08G59/22; C08G59/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
THE EPOXY RESIN COMPOSITION PREPARED BY EPOXIDIZING TERMINAL AMINO GROUPS OF A HALOGENATED PHENYLDIAMINE SELECTED FROM THE CLASS CONSISTING OF:
Claim 2
Dependent Claim
20 words
THE EPOXY RESIN COMPOSITION PREPARED BY EPOXIDIZING TERMINAL AMINO GROUPS OF A HALOGENATED PHENYLDIAMINE SELECTED FROM THE CLASS CONSISTING OF:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |