Patent US2678452A successfully refreshed from Google Patents.
US2678452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hospital bed
Assignee: Individual
•
Filing: 1950-12-12
•
Granted: 1954-05-18
•
Expires: 1970-12-12
Abstract
No abstract record available.
Inventors
- 👤 Marvel D Beem
- 👤 John E Urbany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:25
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/02; Y; Y10; Y10S; Y10S5/00; Y10S5/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US920922A
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US2014244A
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US2407892A
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US2374488A
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US2500741A
Cited
US2532706A
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US2543296A
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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) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |