US2556855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous discharge device
Assignee: Raytheon Co
•
Filing: 1946-08-30
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Granted: 1951-06-12
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Expires: 1966-08-30
Abstract
No abstract record available.
Inventors
- 👤 Paul W Stutsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:03
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/40; H01J17/44; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB230467A
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US1859875A
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US1917997A
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US2071748A
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US2018815A
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US2192162A
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US2243902A
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US2214511A
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US2454761A
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US2423426A
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US2433813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |