Patent US3221349A successfully refreshed from Google Patents.
US3221349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress depressor
Assignee: Individual
•
Filing: 1963-12-09
•
Granted: 1965-12-07
•
Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 George S Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:36
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05723; Y; Y10; Y10S; Y10S5/00; Y10S5/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A MATTRESS DEPRESSOR FOR A MATTRESS ON WHICH AN INVALID PERSON OR THE LIKE IS RECLINING SO AS TO PROVIDE IN THE TOP OF SUCH MATTRESS A LOCALIZED DEPRESSION CAPABLE OF RECEIVING AND ALLEVIATING DISTRESS IN A BODY PART OF SUCH PERSON, COMPRISING: A LOWER PLATE-LIKE ELEMENT ADAPTED TO ENGAGE GENERALLY FLATWISE A PORTION OF THE BOTTOM OF A MATTRESS SPACED A SUBSTANTIAL DISTANCE INWARDLY FROM THE MARGINAL EDGE OF SUCH MATTRESS, AN UPPER BUTTON-LIKE ELEMENT ADAPTED TO ENGAGE THE UPPER SURFACE OF THE MATTRESS AT A PORTION THEREOF IN VERTICAL ALINEMENT WITH SAID BOTTOM ELEMENT, SAID BOTTOM ELEMENT HAVING A MATTRESS-ENGAGING AREA SUBSTANTIALLY GREATER THAN THAT OF SAID UPPER ELEMENT, AND MEANS OPERATIVELY CONNECTED BETWEEN THE ELEMENTS FOR EXERTING A VERTICAL FORCE BETWEEN THE ELEMENTS TO HOLD THE UPPER ELEMENT DOWNWARDLY TOWARD THE BOTTOM ELEMENT AND THEREBY TO CREATE A SUBSTANTIAL DEPRESSION IN THE UPPER SURFACE OF THE MATTRESS CENTERED ABOUT SAID UPPER ELEMENT.
Claim 2
Dependent Claim
155 words
A MATTRESS DEPRESSOR FOR A MATTRESS ON WHICH AN INVALID PERSON OR THE LIKE IS RECLINING SO AS TO PROVIDE IN THE TOP OF SUCH MATTRESS A LOCALIZED DEPRESSION CAPABLE OF RECEIVING AND ALLEVIATING DISTRESS IN A BODY PART OF SUCH PERSON, COMPRISING: A LOWER PLATE-LIKE ELEMENT ADAPTED TO ENGAGE GENERALLY FLATWISE A PORTION OF THE BOTTOM OF A MATTRESS SPACED A SUBSTANTIAL DISTANCE INWARDLY FROM THE MARGINAL EDGE OF SUCH MATTRESS, AN UPPER BUTTON-LIKE ELEMENT ADAPTED TO ENGAGE THE UPPER SURFACE OF THE MATTRESS AT A PORTION THEREOF IN VERTICAL ALINEMENT WITH SAID BOTTOM ELEMENT, SAID BOTTOM ELEMENT HAVING A MATTRESS-ENGAGING AREA SUBSTANTIALLY GREATER THAN THAT OF SAID UPPER ELEMENT, AND MEANS OPERATIVELY CONNECTED BETWEEN THE ELEMENTS FOR EXERTING A VERTICAL FORCE BETWEEN THE ELEMENTS TO HOLD THE UPPER ELEMENT DOWNWARDLY TOWARD THE BOTTOM ELEMENT AND THEREBY TO CREATE A SUBSTANTIAL DEPRESSION IN THE UPPER SURFACE OF THE MATTRESS CENTERED ABOUT SAID UPPER ELEMENT.
References Cited (Backward Citations)
US185127A
Cited
GB212604A
Cited
US1981254A
Cited
US2131609A
Cited
US2750604A
Cited
GB916398A
Cited
US3103082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |