US3510694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage to current converter
Assignee: Phillips Petroleum Co
•
Filing: 1967-03-06
•
Granted: 1970-05-05
•
Expires: 1987-03-06
Abstract
No abstract record available.
Inventors
- 👤 Richard W Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125715A
Cited
US2956179A
Cited
US2932783A
Cited
US3069617A
Cited
US3101441A
Cited
US3050644A
Cited
US3317817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |