Coated springs and mattress made thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 2015
Grant Date -
Apr 4, 2013
app pub date -
Sep 11, 2012
filing date -
Oct 4, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention describes a coated spring for mattresses that comprises a helical compression spring and a wrapping in the form of a bag containing the spring, wherein the bag containing the spring is injected with a polymeric reaction mixture, which after reacting or curing produces a polymeric foam, preferably of flexible polyurethane up to a desired volume in order to cause the spring to change its flexion or compression properties, as well as the method for its manufacturing and its use in the manufacturing of mattresses of different kinds.
First Claim
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International Classification(s)
- 2012 Application Filing Year
- A47C Class
- 732 Applications Filed
- 609 Patents Issued To-Date
- 83.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 11 Citation Count
- A47C Class
- 72.63 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 23, 2026 |
