US3278488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable mixtures of epoxy resins sulfolene adducts and polyamines
Assignee: BASF Schweiz AG
•
Filing: 1962-04-02
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Granted: 1966-10-11
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Nikles Erwin
- 👤 Batzer Hans
- 👤 Ernst Otto
- 👤 Zumstein Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3041352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |