Patent US3601253A successfully refreshed from Google Patents.
Patent US3562825A successfully refreshed from Google Patents.
US3562825A
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US
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Mattress construction and plastic net spring bridging element for use therein
Assignee: Leucadia Inc
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Filing: 1969-03-18
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Granted: 1971-02-16
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Expires: 1989-03-18
Abstract
Abstract AN EXTRUDED PLASTIC NET, HAVING HEAVY STRANDS IN ONE DIRECTION AND LIGHTER STRANDS IN THE OTHER DIRECTION, IS USED TO REPLACE TWO PREVIOUS ELEMENTS I.E. (1) A WIRE-ROPE SPRING BRIDING UNIT, AND (2) A COTTOM SCRIM IN A MATTRESS CONSTRUCTION THUS PERMITTING SEWING OF THE SPRING BRIDGING UNIT TO THE CUSHIONING MATERIAL.
Inventors
- 👤 Ronald L Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:42
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/043; A47C23/0431; Y; Y10; Y10S; Y10S264/00; Y10S264/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |