Patent US3308485A successfully refreshed from Google Patents.
US3308485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beds
Assignee: Huntleigh Nesbit Evans Ltd
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Filing: 1965-11-29
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Granted: 1967-03-14
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Nesbit-Evans Dermot Knox Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:34
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/005; A61G7/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A HOSPITAL BED OR TROLLEY COMPRISING: A BASE FRAME, A MATTRESS FRAME LOCATED ABOVE THE BASE FRAME, A LINKAGE CONNECTED TO THE BASE FRAME AND TO THE MATTRESS FRAME, A HYDRAULIC JACK FOR ELEVATING AND LOWERING THE MATTRESS FRAME RELATIVE TO THE BASE FRAME, AND A SWINGING LINK; SAID LINKAGE COMPRISING A PAIR OF CROSSED MEMBERS, THE LOWER ENDS OF BOTH THE SAID PAIR OF MEMBERS BEING PIVOTALLY CONNECTED TO THE BASE FRAME ABOUT AXES FIXED IN RELATION TO THE BASE FRAME, THE UPPER END OF ONE OF SAID PAIR OF MEMBERS BEING LIKEWISE PIVOTALLY CONNECTED TO THE MATTRESS FRAME ABOUT AN AXIS FIXED IN RELATION TO THE MATTRESS FRAME, THE UPPER END OF THE OTHER OF SAID PAIR OF MEMBERS BEING PIVOTALLY CONNECTED TO SAID SWINGING LINK AND SAID SWINGING LINK BEING ITSELF PIVOTED ABOUT AN AXIS FIXED IN RELATION TO THE MATTRESS FRAME; SAID CROSSED MEMBERS, AT THE POINT OF INTERSECTION, BEING CONNECTED TOGETHER BY A ROLLER ON ONE MEMBER ENGAGING A TRACK UPON THE OTHER MEMBER; AND SAID HYDRAULIC JACK BEING LOCATED WITH ONE END ABUTTING SAID BASE FRAME, AND THE OTHER END ABUTTING SAID LINKAGE.
Claim 2
Dependent Claim
189 words
A HOSPITAL BED OR TROLLEY COMPRISING: A BASE FRAME, A MATTRESS FRAME LOCATED ABOVE THE BASE FRAME, A LINKAGE CONNECTED TO THE BASE FRAME AND TO THE MATTRESS FRAME, A HYDRAULIC JACK FOR ELEVATING AND LOWERING THE MATTRESS FRAME RELATIVE TO THE BASE FRAME, AND A SWINGING LINK; SAID LINKAGE COMPRISING A PAIR OF CROSSED MEMBERS, THE LOWER ENDS OF BOTH THE SAID PAIR OF MEMBERS BEING PIVOTALLY CONNECTED TO THE BASE FRAME ABOUT AXES FIXED IN RELATION TO THE BASE FRAME, THE UPPER END OF ONE OF SAID PAIR OF MEMBERS BEING LIKEWISE PIVOTALLY CONNECTED TO THE MATTRESS FRAME ABOUT AN AXIS FIXED IN RELATION TO THE MATTRESS FRAME, THE UPPER END OF THE OTHER OF SAID PAIR OF MEMBERS BEING PIVOTALLY CONNECTED TO SAID SWINGING LINK AND SAID SWINGING LINK BEING ITSELF PIVOTED ABOUT AN AXIS FIXED IN RELATION TO THE MATTRESS FRAME; SAID CROSSED MEMBERS, AT THE POINT OF INTERSECTION, BEING CONNECTED TOGETHER BY A ROLLER ON ONE MEMBER ENGAGING A TRACK UPON THE OTHER MEMBER; AND SAID HYDRAULIC JACK BEING LOCATED WITH ONE END ABUTTING SAID BASE FRAME, AND THE OTHER END ABUTTING SAID LINKAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |