Patent US3230557A successfully refreshed from Google Patents.
US3230557A
Expired / Lapsed
US
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Back rest
Assignee: FAIR OAKS CONVALESCENT
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Filing: 1964-04-28
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Granted: 1966-01-25
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 William H Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:42
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/02; A47C20/027; A47C20/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN INVALID SEAT FOR USE IN CONNECTION WITH A BED COMPRISING: (A) A RELATIVELY FLAT ELONGATED PLATE-LIKE BASE MEMBER THE FORWARD EDGE OF WHICH IS FORMED TO DEFINE A CENTRAL GENERALLY U-SHAPED BUTTOCKS -RECEIVING NOTCH, (B) A BACK SEAT REST MEMBER PIVOTALLY SECURED TO SAID BASE BASE MEMBER IMMEDIATELY REARWARDLY OF SAID NOTCH FOR LIMITED SWINGING MOVEMENTS ABOUT A HORIZONTAL AXIS FROM A GENERALLY UPRIGHT BACK-SUPPORTING POSITION TO A FORWARDLY DISPOSED INOPERATIVE POSITION SUBSTANTIALLY OVERLYING SAID NOTCH AND IN SUBSTANTIALLY COPLANAR RELATIONSHIP WITH SAID BASE, (C) STOP MEANS LIMITING REARWARD SWINGING MOVEMMENTS OF SAID BACK REST MEMBER, (D) A RELATIVELY FLAT SUPPORTING TRAY ELEMENT,
Claim 2
Dependent Claim
104 words
AN INVALID SEAT FOR USE IN CONNECTION WITH A BED COMPRISING: (A) A RELATIVELY FLAT ELONGATED PLATE-LIKE BASE MEMBER THE FORWARD EDGE OF WHICH IS FORMED TO DEFINE A CENTRAL GENERALLY U-SHAPED BUTTOCKS -RECEIVING NOTCH, (B) A BACK SEAT REST MEMBER PIVOTALLY SECURED TO SAID BASE BASE MEMBER IMMEDIATELY REARWARDLY OF SAID NOTCH FOR LIMITED SWINGING MOVEMENTS ABOUT A HORIZONTAL AXIS FROM A GENERALLY UPRIGHT BACK-SUPPORTING POSITION TO A FORWARDLY DISPOSED INOPERATIVE POSITION SUBSTANTIALLY OVERLYING SAID NOTCH AND IN SUBSTANTIALLY COPLANAR RELATIONSHIP WITH SAID BASE, (C) STOP MEANS LIMITING REARWARD SWINGING MOVEMMENTS OF SAID BACK REST MEMBER, (D) A RELATIVELY FLAT SUPPORTING TRAY ELEMENT,
References Cited (Backward Citations)
US2332582A
Cited
US2419721A
Cited
US2563347A
Cited
US2529350A
Cited
US2867821A
Cited
FR1303627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |