Patent US2611981A successfully refreshed from Google Patents.
US2611981A
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Combination advertising sign and illuminating device
Assignee: KOLITE PLASTICS CO
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Filing: 1948-05-19
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Granted: 1952-09-30
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Expires: 1968-05-19
Abstract
No abstract record available.
Inventors
- 👤 Ned B Whitebread
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:49
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02B6/0086; G02B6/0091; G02B6/0066; G02B6/007; G02B6/0071; Y; Y10; Y10S; Y10S362/00; Y10S362/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440096A
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US1930359A
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US2142200A
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US2206866A
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US2276185A
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US2276114A
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US2251861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |