US3479545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface ionization apparatus and electrode means for accelerating the ions in a curved path
Assignee: Raytheon Co
•
Filing: 1967-05-16
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Granted: 1969-11-18
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Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Robert G Wilson
- 👤 George R Brewer
- 👤 Douglas M Jamba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:47
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/08; H01J27/00; H01J27/02; H01J27/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2576601A
Cited
US2816231A
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US2836750A
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US3135863A
Cited
US3341352A
Cited
US3229157A
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 |