US3087572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic absorber
Assignee: RTX BBN Technologies Corp
•
Filing: 1959-05-29
•
Granted: 1963-04-30
•
Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Jordan J Baruch
- 👤 Bill G Watters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/32; E04B9/001
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
AN ACOUSTIC ABSORBER COMPRISING A THIN SHEET HAVING A PLURALITY OF CONTIGUOUS BEAD-LIKE ELEMENTS DEFINING SPACES THEREBETWEEN WHICH EXTEND THROUGH SAID SHEET, AND HAVING A BINDER JOINING SAID ELEMENTS INTO A UNITARY LAYER OF THICKNESS SUBSTANTIALLY THE SAME AS SAID ELEMENTS, SAID BINDER HAVING SPACES THEREIN ALIGNED WITH THE FIRSTMENTIONED SPACES WHEREBY ACOUSTIC WAVES MAY BE PROPAGATED THROUGH SAID SHEET, SAID SHEET HAVING A FLOW RESISTANCE SUBSTANTIALLY WITHIN THE RANGE FROM
Claim 2
Dependent Claim
71 words
AN ACOUSTIC ABSORBER COMPRISING A THIN SHEET HAVING A PLURALITY OF CONTIGUOUS BEAD-LIKE ELEMENTS DEFINING SPACES THEREBETWEEN WHICH EXTEND THROUGH SAID SHEET, AND HAVING A BINDER JOINING SAID ELEMENTS INTO A UNITARY LAYER OF THICKNESS SUBSTANTIALLY THE SAME AS SAID ELEMENTS, SAID BINDER HAVING SPACES THEREIN ALIGNED WITH THE FIRSTMENTIONED SPACES WHEREBY ACOUSTIC WAVES MAY BE PROPAGATED THROUGH SAID SHEET, SAID SHEET HAVING A FLOW RESISTANCE SUBSTANTIALLY WITHIN THE RANGE FROM
Claim 3
Dependent Claim
4 words
93 X 10**-6 ------------SR3
Claim 4
Dependent Claim
4 words
93 X 10**-6 ------------SR3
Claim 5
Dependent Claim
4 words
62 X 10**-7 ------------SR3
Claim 6
Dependent Claim
4 words
62 X 10**-7 ------------SR3
References Cited (Backward Citations)
USRE14992E
Cited
US1176746A
Cited
US1846357A
Cited
US1929425A
Cited
US1966747A
Cited
US2484003A
Cited
US2595047A
Cited
GB754252A
Cited
GB800103A
Cited
US2854565A
Cited
US2870857A
Cited
US2838806A
Cited
US2975853A
Cited
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 |