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Patent US2554647A successfully refreshed from Google Patents.
US2554647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic lamp shade with circulating air passage
Assignee: Individual
•
Filing: 1948-06-08
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Granted: 1951-05-29
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Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Herman A Snider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:21
CPC Classifications
F; F21; F21V; F21V1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1267749A
Cited
US1777824A
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US1824047A
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US1950131A
Cited
US1980183A
Cited
US2007489A
Cited
US2057263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |