US3455949A
Expired / Lapsed
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Hexahydrophthalimide polyepoxide compounds
Assignee: BASF Schweiz AG
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Filing: 1966-03-16
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Granted: 1969-07-15
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Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Daniel Porret
- 👤 Friedrich Lohse
- 👤 Ernst Leumann
- 👤 Erwin Nikles
- 👤 Hans Batzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:56
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26; C08G59/24; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/086; C10M2215/24; C10M2215/28; C10N; C10N2040/00; C10N2040/08; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB788123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |