US2489650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable lamp support
Assignee: Individual
•
Filing: 1946-11-21
•
Granted: 1949-11-29
•
Expires: 1966-11-21
Abstract
No abstract record available.
Inventors
- 👤 Landrum Wiley Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:15
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/002; F21S6/003; F21S6/005; F21S6/006; F21V; F21V21/00; F21V21/14; F21V21/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420069A
Cited
US641748A
Cited
US2090439A
Cited
US2076446A
Cited
US2301661A
Cited
US2340310A
Cited
US2364794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |