US3038271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-luminous signs
Assignee: United States Radium Corp
•
Filing: 1959-07-22
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Granted: 1962-06-12
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 John G Machutchin
- 👤 Walter F Buck
- 👤 John C Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:36
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/42; F; F21; F21W; F21W2111/00; F21W2111/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1994519A
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US1914932A
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US1937957A
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US1816220A
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US2155449A
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US2604711A
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US2651863A
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US2712188A
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US2740957A
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US2883770A
Cited
US2880536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |