Patent US3470132A successfully refreshed from Google Patents.
US3470132A
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US
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Thermocurable composition of epoxy resins and mixed polycarboxylic acid anhydrides
Assignee: BASF Schweiz AG
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Filing: 1966-11-29
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Granted: 1969-09-30
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Otto Ernst
- 👤 Kurt Neubold
- 👤 Guenther Ibing
- 👤 Fritz Kugler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:08
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215; C07; C07C; C07C51/00; C07C51/54; C07C51/567
Claims Analysis
Total Claims: 0
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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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |