US2831201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient lift and transport device
Assignee: Individual
•
Filing: 1954-06-03
•
Granted: 1958-04-22
•
Expires: 1974-06-03
Abstract
No abstract record available.
Inventors
- 👤 David R Limbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
A; A61; A61G; A61G1/00; A61G1/02; A61G1/0206; A61G1/0212; A61G1/0237; A61G1/0293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1257445A
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FR517793A
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US1506174A
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US1738548A
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US1795435A
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US2142215A
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FR826219A
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US2198997A
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US2228012A
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GB522529A
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GB534162A
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FR864191A
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US2349023A
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US2391928A
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US2690177A
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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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |