U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Tackable sound absorptive panel

Patent 4248325 Issued on February 3, 1981. Estimated Expiration Date: Icon_subject December 28, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1823405

1928034

2824618

3082143

3441465

3605851

3822762

3895670

Acoustical material for use in association with noise generating machinery
Patent #: 3977492
Issued on: 08/31/1976
Inventor: Hankel

Divider screen assembly
Patent #: 4020604
Issued on: 05/03/1977
Inventor: Legler ,   et al.

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Inventor

Assignee

Application

No. 05/973990 filed on 12/28/1978

US Classes:

181/284, Sound absorbing panels181/290, Multilayer panel or wall structure181/294Materials

Examiners

Primary: Hix, L. T.
Assistant: Fuller, Benjamin R.

Attorney, Agent or Firm

International Classes

E04B 2/74 (20060101)
E04C 2/26 (20060101)
E04C 2/284 (20060101)
E04B 1/84 (20060101)

Abstract

An improved sound absorptive tackable space dividing wall panel or similar article in which a wire mesh screen is disposed within the sound absorptive material a distance from the tackable surface less than the length of the tack pin, thereby providing additional support for the tackable load without appreciably reducing the sound absorptive characteristics of the panel.

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