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Patent US3529208A successfully refreshed from Google Patents.
US3529208A
Expired / Lapsed
US
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Discharge lamp arrangement for lighting purposes
Assignee: Individual
•
Filing: 1967-08-24
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Granted: 1970-09-15
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Expires: 1987-08-24
Abstract
No abstract record available.
Inventors
- 👤 Frank Frungel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:27
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/24; H01J61/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US253770A
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US1595775A
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US1851360A
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US2252474A
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US2716717A
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US3377496A
Cited
US3337762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |