US3513082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode system
Assignee: Individual
•
Filing: 1967-09-01
•
Granted: 1970-05-19
•
Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Ernst Beer
- 👤 Henri Bernard Beer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/18; C23F13/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US669922A
Cited
US2776941A
Cited
US2837483A
Cited
US2910419A
Cited
US2954257A
Cited
GB908310A
Cited
US3081252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |