US3395504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound absorbing panels between ceilings
Assignee: Individual
•
Filing: 1966-07-25
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Granted: 1968-08-06
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Zwickert Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/18; E04B9/20; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04B9/001; E04B9/008; E04B9/06; E04B9/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A HANGING ARRANGEMENT FOR FALSE CEILINGS, COMPRISING IN COMBINATION: BEARER SECTION MEMBERS FIXED TO A TRUE CEILING, THESE SECTION MEMBERS HAVING A DOWNWARDLY OPENING LONGITUDINAL GROOVE; SUPPORTING SECTION MEMBERS SUPPORTING THE FALSE CEILING, THESE SECTION MEMBERS HAVING BEARING SURFACES FOR THE FALSE CEILING PANELS AND AN UPWARDLY OPEN LONGITUDINAL GROOVE; SUSPENSION MEMBERS SUSPENDING THE SUPPORT SECTION MEMBERS FROM THE BEARER SECTION MEMBERS, THE SAID SUSPENSION MEMBERS HAVING AN UPPER END RETAINED IN THE GROOVE OF A BEARER SECTION MEMBER AND A LOWER END BEING RETAINED IN THE GROOVE OF A SUPPORTING SECTION MEMBER, WHICH IS THUS SUSPENDED FROM THE BEARER SECTION MEMBER, AND SOUND-ABSORBING PANELS MOUNTED LONGITUDINALLY BETWEEN THE BEARER SECTION MEMBERS AND THE SUPPORTING SECTION MEMBERS, THE UPPER AND LOWER ENDS OF THESE SOUND-ABSORBING PANELS ENGAGED RESPECTIVELY IN THE GROOVES OF THE BEARER SECTION MEMBERS AND IN THE GROOVES OF SUPPORTING SECTION MEMBERS.
Claim 2
Dependent Claim
144 words
A HANGING ARRANGEMENT FOR FALSE CEILINGS, COMPRISING IN COMBINATION: BEARER SECTION MEMBERS FIXED TO A TRUE CEILING, THESE SECTION MEMBERS HAVING A DOWNWARDLY OPENING LONGITUDINAL GROOVE; SUPPORTING SECTION MEMBERS SUPPORTING THE FALSE CEILING, THESE SECTION MEMBERS HAVING BEARING SURFACES FOR THE FALSE CEILING PANELS AND AN UPWARDLY OPEN LONGITUDINAL GROOVE; SUSPENSION MEMBERS SUSPENDING THE SUPPORT SECTION MEMBERS FROM THE BEARER SECTION MEMBERS, THE SAID SUSPENSION MEMBERS HAVING AN UPPER END RETAINED IN THE GROOVE OF A BEARER SECTION MEMBER AND A LOWER END BEING RETAINED IN THE GROOVE OF A SUPPORTING SECTION MEMBER, WHICH IS THUS SUSPENDED FROM THE BEARER SECTION MEMBER, AND SOUND-ABSORBING PANELS MOUNTED LONGITUDINALLY BETWEEN THE BEARER SECTION MEMBERS AND THE SUPPORTING SECTION MEMBERS, THE UPPER AND LOWER ENDS OF THESE SOUND-ABSORBING PANELS ENGAGED RESPECTIVELY IN THE GROOVES OF THE BEARER SECTION MEMBERS AND IN THE GROOVES OF SUPPORTING SECTION MEMBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |