US3408526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion source having an annular permanent magnet
Assignee: US Philips Corp
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Filing: 1966-04-18
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Granted: 1968-10-29
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Elenga Cornelis Willem
- 👤 Reifenschweiler Otto
- 👤 Schenkelaars Martinus He Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:42
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/46; H01; H01J; H01J17/00; H01J17/02; H01J17/14; H05; H05H; H05H3/00; H05H3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |