US2880337A
Expired / Lapsed
US
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Particle acceleration method and apparatus
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1958-01-02
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Granted: 1959-03-31
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Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 David B Langmuir
- 👤 Warren A Marrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:32
CPC Classifications
F; F02; F02K; F02K5/00; B; B24; B24C; B24C5/00; B24C5/08; H; H05; H05H; H05H5/00; Y; Y10; Y10S; Y10S164/00; Y10S164/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2818507A
Cited
US2798181A
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US2778945A
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US2808510A
Cited
US2826708A
Cited
US2819423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |