Patent US2491448A successfully refreshed from Google Patents.
US2491448A
Expired / Lapsed
US
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Floor lamp
Assignee: Hill Rom Co Inc
•
Filing: 1946-12-10
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Granted: 1949-12-13
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Expires: 1966-12-10
Abstract
No abstract record available.
Inventors
- 👤 William A Hillenbrand
- 👤 Francis J Burst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:56
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/10; F21S; F21S6/00; F21S6/005; F21S6/006; F21S13/00; F21S13/12; F21S8/00; F21S8/03; F21S8/033; F21S8/035; F21V14/00; F21V14/08; F21V17/00; F21V17/02; F21V21/00; F21V21/06; F21V21/10; F21V21/116; F21V21/14; F21V21/30; F21V23/00; F21V23/06; F21V21/22; F21Y; F21Y2113/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |