US3471383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous anode for electrolytic cells
Assignee: GAF Corp
•
Filing: 1965-02-05
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Granted: 1969-10-07
•
Expires: 1985-02-05
Abstract
No abstract record available.
Inventors
- 👤 Herman H Tiedemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/30; C25B9/303; C25B1/00; C25B11/00; C25B11/02; C25B11/033; C25B9/005; C25B9/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189624803A
Cited
US1750831A
Cited
US2323042A
Cited
US2953507A
Cited
US2933438A
Cited
US3244612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |