US3479275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell
Assignee: ROSS M GWYNN
•
Filing: 1967-06-01
•
Granted: 1969-11-18
•
Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ross M Gwynn
- 👤 Tim Themy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:39
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/467; C02F1/4672; C02F1/4674; C02F1/46109; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2882210A
Cited
US2887444A
Cited
US3192146A
Cited
US3282823A
Cited
US3361663A
Cited
US3378479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |