US3087570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel and the like of high acoustic transmission loss
Assignee: RTX BBN Technologies Corp
•
Filing: 1959-03-23
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Granted: 1963-04-30
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Bill G Watters
- 👤 Kurtze Guenther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/8457; E04B2001/8461; E04B2001/8471; E04B2001/8476; E04B2001/848; E04B2001/849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN ACOUSTIC PANEL COMPRISING STEEL-LIKE LAYERS OF SHEET MATERIAL SPACED APART, BLOCKS OF WOOD FIBER-LIKE MATERIAL OF EFFECTIVE LONGITUDINAL STIFFNESS IN TERMS OF ITS YOUNG''S MODULUS LESS THAN THAT OF SAID LAYERS DISPOSED BETWEEN AND IN CONTACT WITH SAID LAYERS, THE EFFECTIVE SHEAR MODULUS U OF THE SAID BLOCKS AND THEIR EFFECTIVE DENSITY P BEING RELATED TO THE VELOCITY CS OF SHEAR WAVES IN THE SAID PANEL SUBSTANTIALLY BY THE EQUATION
Claim 2
Dependent Claim
71 words
AN ACOUSTIC PANEL COMPRISING STEEL-LIKE LAYERS OF SHEET MATERIAL SPACED APART, BLOCKS OF WOOD FIBER-LIKE MATERIAL OF EFFECTIVE LONGITUDINAL STIFFNESS IN TERMS OF ITS YOUNG''S MODULUS LESS THAN THAT OF SAID LAYERS DISPOSED BETWEEN AND IN CONTACT WITH SAID LAYERS, THE EFFECTIVE SHEAR MODULUS U OF THE SAID BLOCKS AND THEIR EFFECTIVE DENSITY P BEING RELATED TO THE VELOCITY CS OF SHEAR WAVES IN THE SAID PANEL SUBSTANTIALLY BY THE EQUATION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |