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Patent US2516286A successfully refreshed from Google Patents.
US2516286A
Expired / Lapsed
US
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Lamp shade and method of manufacture
Assignee: DAVID WALANKA
•
Filing: 1946-08-06
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Granted: 1950-07-25
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Expires: 1966-08-06
Abstract
No abstract record available.
Inventors
- 👤 Yeidel Dorothy Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1825246A
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US1989384A
Cited
US1989931A
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US2341942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |