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US3518501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cell circuits
Assignee: PACIFIC-ELECTRON Corp A CA CORP
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Filing: 1968-03-07
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Granted: 1970-06-30
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Expires: 1988-03-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Bissett
- 👤 John Brian Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:30
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2791473A
Cited
US3017612A
Cited
US3052830A
Cited
US3158798A
Cited
US3119754A
Cited
US3210662A
Cited
US3423648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |