US3387171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for modulating beams of charged particles utilizing a long interaction gap
Assignee: Varian Medical Systems Inc
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Filing: 1965-10-22
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Granted: 1968-06-04
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Heil Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:05
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/12; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J25/34; H01J25/36
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |