US3546512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutron generator including an ion source with a massive ferromagnetic probe electrode and a permanent magnet-electrode
Assignee: Schlumberger Technology Corp
•
Filing: 1967-02-13
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Granted: 1970-12-08
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Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Frentrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
H; H05; H05H; H05H3/00; H05H3/06; H01; H01J; H01J27/00; H01J27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2410054A
Cited
US2943239A
Cited
US3020408A
Cited
US2994775A
Cited
US3246191A
Cited
US3385965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |