US3283202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas discharge spectral lamp of 5350 angstroms
Assignee: AT&T Inc
•
Filing: 1963-04-04
•
Granted: 1966-11-01
•
Expires: 1983-04-04
Abstract
No abstract record available.
Inventors
- 👤 Keith S Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:54
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/125; H01J61/84; H01J61/90; H01S; H01S3/00; H01S3/09; H01S3/091; H01S3/0915; H01S3/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1088740A
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US2203550A
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US2497507A
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US2512280A
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US3093769A
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US3234421A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |