US3199124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air mattress
Assignee: R D GRANT CO
•
Filing: 1963-03-29
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Granted: 1965-08-10
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Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Richard D Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05769; A61G7/05776
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A HOLLOW MATTRESS FOR SUPPORTING THE BODY OF A PATIENT UPON A BED AND COMPRISING FLEXIBLE, FLUID-TIGHT SHEET MATERIAL DIVIDED INTO TWO SETS OF ELONGATED GENERALLY PARALLEL FLUID CELLS EXTENDING LENGTHWISE OF THE BODY TO BE SUPPORTED THEREON, ONE SET OF CELLS BEING ADAPTED TO BE CONNECTED WITH A SOURCE OF PRESSURE-FLUID FOR INFLATION TO A BODY-SUPPORTING POSITION WHILE THE OTHER SET OF CELLS IS CONNECTED TO EXHAUST, IN USE THE INFLATION AND DEFLATION OF SAID TWO SETS OF CELLS ALTERNATING IN A REGULAR CYCLE, SAID CELLS AT ONE END ONLY OF SAID MATTRESS BEING FORMED WITH A LESSER WIDTH CROSS-WISE THAN THE CELL WIDTH AT OTHER PARTS OF SAID MATTRESS, AND SAID NARROWER CELL WIDTH AT SAID ONE END BEING LESS THAN THE WIDTH OF AN ADULT HUMAN HEEL.
Claim 2
Dependent Claim
130 words
A HOLLOW MATTRESS FOR SUPPORTING THE BODY OF A PATIENT UPON A BED AND COMPRISING FLEXIBLE, FLUID-TIGHT SHEET MATERIAL DIVIDED INTO TWO SETS OF ELONGATED GENERALLY PARALLEL FLUID CELLS EXTENDING LENGTHWISE OF THE BODY TO BE SUPPORTED THEREON, ONE SET OF CELLS BEING ADAPTED TO BE CONNECTED WITH A SOURCE OF PRESSURE-FLUID FOR INFLATION TO A BODY-SUPPORTING POSITION WHILE THE OTHER SET OF CELLS IS CONNECTED TO EXHAUST, IN USE THE INFLATION AND DEFLATION OF SAID TWO SETS OF CELLS ALTERNATING IN A REGULAR CYCLE, SAID CELLS AT ONE END ONLY OF SAID MATTRESS BEING FORMED WITH A LESSER WIDTH CROSS-WISE THAN THE CELL WIDTH AT OTHER PARTS OF SAID MATTRESS, AND SAID NARROWER CELL WIDTH AT SAID ONE END BEING LESS THAN THE WIDTH OF AN ADULT HUMAN HEEL.
References Cited (Backward Citations)
US2719986A
Cited
US2896612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |