US3511922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulator of hydrophthalic anhydride cured cycloaliphatic epoxy resins for overhead lines
Assignee: BASF Schweiz AG
•
Filing: 1967-10-27
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Granted: 1970-05-12
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Expires: 1987-10-27
Abstract
No abstract record available.
Inventors
- 👤 Willy Fisch
- 👤 Otto Ernst
- 👤 Ernst Nideroest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/20; C08G59/22; C08G59/24; H; H01; H01B; H01B19/00; H01B19/04; H01B3/00; H01B3/18; H01B3/30; H01B3/40; B; B29; B29L; B29L2031/00; B29L2031/34; B29L2031/3412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2961518A
Cited
DE1113726B
Cited
FR1233231A
Cited
US3138618A
Cited
US3147279A
Cited
US3086888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |