Patent US3237714A successfully refreshed from Google Patents.
US3237714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound absorbing structural block with through passage and transverse baffles
Assignee: Individual
•
Filing: 1964-02-17
•
Granted: 1966-03-01
•
Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Surine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:30
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/39; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8404; E04B2001/8457; E04B2001/8476; E04B2001/848
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A STRUCTURAL BLOCK FOR COMBINATION WITH OTHER LIKE BLOCKS, COMPRISING: AN INTEGRAL, PERIPHERAL BODY SHELL OF RIGID, STURDY MATERIAL FORMING A CLOSED PERIPHERAL OUTER SURFACE FOR COOPERATIVE ASSOCIATION WITH OTHER LIKE BLOCKS AND TWO END FACES; SAID SHELL HAVING AT LEAST ONE CENTRAL OPENING THEREIN, EXTENDING COMPLETELY THROUGH SAID BLOCK BETWEEN SAID FACES TO HAVE BOTH ENDS OPEN; AND SPACED TRANSVERSE INSERT BAFFLES RETAINED WITHIN SAID OPENING, EXTENDING THEREACROSS AND CLOSING OFF SAID OPENING IN AT LEAST TWO SELECTED POSITIONS; THE BAFFLE ADJACENT ONE END FACE BEING RECESSED THEREFROM TO FORM A DEAD END CAVITY OF CONTROLLED ACOUSTICAL CHARACTERISTICS.
Claim 2
Dependent Claim
99 words
A STRUCTURAL BLOCK FOR COMBINATION WITH OTHER LIKE BLOCKS, COMPRISING: AN INTEGRAL, PERIPHERAL BODY SHELL OF RIGID, STURDY MATERIAL FORMING A CLOSED PERIPHERAL OUTER SURFACE FOR COOPERATIVE ASSOCIATION WITH OTHER LIKE BLOCKS AND TWO END FACES; SAID SHELL HAVING AT LEAST ONE CENTRAL OPENING THEREIN, EXTENDING COMPLETELY THROUGH SAID BLOCK BETWEEN SAID FACES TO HAVE BOTH ENDS OPEN; AND SPACED TRANSVERSE INSERT BAFFLES RETAINED WITHIN SAID OPENING, EXTENDING THEREACROSS AND CLOSING OFF SAID OPENING IN AT LEAST TWO SELECTED POSITIONS; THE BAFFLE ADJACENT ONE END FACE BEING RECESSED THEREFROM TO FORM A DEAD END CAVITY OF CONTROLLED ACOUSTICAL CHARACTERISTICS.
References Cited (Backward Citations)
CA552826A
Cited
US1075128A
Cited
GB434127A
Cited
US2159991A
Cited
US2130285A
Cited
US2426796A
Cited
US2745276A
Cited
FR1054377A
Cited
FR1181608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |