Dual-hinged spring
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United States of America Patent
Stats
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May 13, 2014
Grant Date -
Feb 2, 2012
app pub date -
Mar 25, 2010
filing date -
Apr 2, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dual-hinged spring assembly. One assembly comprises two elastomeric arcs including an upper arc having downward ends, and a lower arc having upward ends, the upward ends of the lower arc being movably connected to the downward ends of the upper arc, thereby forming an ovoid spring. Further, when the lower arc is secured against a supporting surface, pressure against the upper arc causes the dual-hinge spring to compress.
First Claim
Other Claims data not available
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International Classification(s)
- 2010 Application Filing Year
- F16F Class
- 493 Applications Filed
- 286 Patents Issued To-Date
- 58.02 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16F Class
- 0 % this patent is cited more than
- 11 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 | Nov 13, 2025 |
