Patent US1679291A successfully refreshed from Google Patents.
Patent US3175656A successfully refreshed from Google Patents.
US3175656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for mounting acoustical ceilings
Assignee: Individual
•
Filing: 1960-01-27
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Granted: 1965-03-30
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Robert W Schoenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:38
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/28; E04B9/06; E04B9/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A LOCK BAR FOR SUPPORTING SOUND ABSORBING UNITS BENEATH A CEILING, COMPRISING A HORIZONTAL TOP WALL, A PAIR OF SPACED PARALLEL SIDE WALLS UNITARY WITH THE TOP WALL AND BEING DISPOSED INWARDLY OF THE SIDE EDGES THEREOF, THE LOWER EDGES OF SAID SIDE WALLS BEING PROVIDED WITH FLANGE MEANS FOR SUPPORTING ADJACENT EDGES OF SOUND ABSORBING UNITS, ONE OF SAID SIDE WALLS BEING PROVIDED WITH RECTANGULAR SPACING TAB MEMBERS WHICH ARE NORMALLY DISPOSED IN THE PLANE OF SAID ONE SIDE WALL AND CONNECTED THEREWITH AT CORRESPONDING ENDS THEREOF, AND SAID SPACING TAB MEMBERS BEING BENDABLE FROM SAID ONE OF SAID SIDE WALLS AT RIGHT ANGULAR RELATION THERETO WITH THE OPPOSITE ENDS THEREOF ENGAGED WITH THE OTHER SIDE WALL.
Claim 2
Dependent Claim
118 words
A LOCK BAR FOR SUPPORTING SOUND ABSORBING UNITS BENEATH A CEILING, COMPRISING A HORIZONTAL TOP WALL, A PAIR OF SPACED PARALLEL SIDE WALLS UNITARY WITH THE TOP WALL AND BEING DISPOSED INWARDLY OF THE SIDE EDGES THEREOF, THE LOWER EDGES OF SAID SIDE WALLS BEING PROVIDED WITH FLANGE MEANS FOR SUPPORTING ADJACENT EDGES OF SOUND ABSORBING UNITS, ONE OF SAID SIDE WALLS BEING PROVIDED WITH RECTANGULAR SPACING TAB MEMBERS WHICH ARE NORMALLY DISPOSED IN THE PLANE OF SAID ONE SIDE WALL AND CONNECTED THEREWITH AT CORRESPONDING ENDS THEREOF, AND SAID SPACING TAB MEMBERS BEING BENDABLE FROM SAID ONE OF SAID SIDE WALLS AT RIGHT ANGULAR RELATION THERETO WITH THE OPPOSITE ENDS THEREOF ENGAGED WITH THE OTHER SIDE WALL.
References Cited (Backward Citations)
US840111A
Cited
US2009512A
Cited
US2186511A
Cited
US2894291A
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US2967583A
Cited
FR1214184A
Cited
US3016998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |