US2634073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination reading lamp and article support
Assignee: Individual
•
Filing: 1949-10-03
•
Granted: 1953-04-07
•
Expires: 1969-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter R Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:41
CPC Classifications
F; F21; F21V; F21V33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US11224A
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US289179A
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US480261A
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US889517A
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US926426A
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US1262802A
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US1781203A
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US1765643A
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US1910505A
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DE705055C
Cited
US2220216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |