US3269484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic absorbing structure
Assignee: Individual
•
Filing: 1963-09-24
•
Granted: 1966-08-30
•
Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Lighter Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:45
CPC Classifications
E; E01; E01F; E01F8/00; E01F8/0005; E01F8/0047; E01F8/0076; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6125; E04B2001/8414; E04B2001/8423; E04B2001/8428; E04B2001/8442; E04B2001/8457; E04B2001/8476; E04B2001/848; E04B2001/8485; E04B2001/849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ACOUSTIC ABSORBING STRUCTURE COMPRISING IN COMBINATION A BACKING PANEL AND A FACING PANEL, SAID BACKING PANEL HAVING A PLURALITY OF CAVITIES HAVING THEREINTO FROM ONE SURFACE THEREOF, SAID CAVITIES HAVING A SHAPE CORRESPONDING TO THAT GENERATED BY MOVEMENT OF A REGULAR GEOMETRIC MEMBER WHICH IS A CONIC SECTION, SAID MOVEMENT SELECTED FROM REVOLUTION OF THE SECTION ABOUT ITS AXIS AND LINEAR TRANSLATORY MOVEMENT PARALLEL TO SAID SURFACE, SAID FACING PANEL ABUTTING SAID SURFACE OF SAID BACKING PANEL AND BEING PROVIDED WITH AN APERTURED DISPOSED CENTRALLY OVER EACH OF SAID CAVITIES IN SAID BACKING PANEL, SAID APERTURE BEING A LESSER CROSS-SECTIONAL MAXIMUM DIMENSION BEING THE MAXIMUM PARALLEL ADJACENT CROSS-SECTIONAL DIMENSION OF SAID CAVITY, EACH OF SAID CAVITIES COMPRISING SURFACES WHICH CONVERGE AS A FUNCTION OF THE DISTANCE OF SAID SURFACES FROM SAID FACING PANEL, AT LEAST ONE OF THE SURFACES OF SAID CAVITY AND THE ABUTTING
Claim 2
Dependent Claim
146 words
AN ACOUSTIC ABSORBING STRUCTURE COMPRISING IN COMBINATION A BACKING PANEL AND A FACING PANEL, SAID BACKING PANEL HAVING A PLURALITY OF CAVITIES HAVING THEREINTO FROM ONE SURFACE THEREOF, SAID CAVITIES HAVING A SHAPE CORRESPONDING TO THAT GENERATED BY MOVEMENT OF A REGULAR GEOMETRIC MEMBER WHICH IS A CONIC SECTION, SAID MOVEMENT SELECTED FROM REVOLUTION OF THE SECTION ABOUT ITS AXIS AND LINEAR TRANSLATORY MOVEMENT PARALLEL TO SAID SURFACE, SAID FACING PANEL ABUTTING SAID SURFACE OF SAID BACKING PANEL AND BEING PROVIDED WITH AN APERTURED DISPOSED CENTRALLY OVER EACH OF SAID CAVITIES IN SAID BACKING PANEL, SAID APERTURE BEING A LESSER CROSS-SECTIONAL MAXIMUM DIMENSION BEING THE MAXIMUM PARALLEL ADJACENT CROSS-SECTIONAL DIMENSION OF SAID CAVITY, EACH OF SAID CAVITIES COMPRISING SURFACES WHICH CONVERGE AS A FUNCTION OF THE DISTANCE OF SAID SURFACES FROM SAID FACING PANEL, AT LEAST ONE OF THE SURFACES OF SAID CAVITY AND THE ABUTTING
References Cited (Backward Citations)
US1738654A
Cited
US1730529A
Cited
US1825770A
Cited
US1918149A
Cited
US2007139A
Cited
US2271871A
Cited
FR1054526A
Cited
US2855039A
Cited
GB776994A
Cited
US2926742A
Cited
FR1123134A
Cited
US2994400A
Cited
US3077945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |