US3195700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible acoustical system
Assignee: SOUNDLOCK CORP
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Filing: 1961-04-21
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Granted: 1965-07-20
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 William G Kemp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:11
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/045; E04B9/001; E04B9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A CEILING STRUCTURE COMPOSED OF INDIVIDUAL SEPARABLE PANELS ARRANGED EDGE TO FORM A CONTINUOUS CEILING, A CONNECTION BETWEEN THE EDGES OF ADJACENT PANELS, SAID CONNECTION INCLUDING AN UPWARDLY EXTENDING FLANGE CARRIED BY THE EDGE OF ONE OF SAID ADJACENT PANELS, AND A DOWNWARDLY OPENING HOOK CARRIED BY THE EDGE OF THE OTHER OF SAID ADJACENT PANELS ENGAGED OVER AND SUPPORTED BY SAID FLANGE, SAID FLANGE HAVING AN EXTENSION AT RIGHT ANGLES THERETO, THE PANEL EDGE BY WHICH SAID FLANGE IS CARRIED HAVING A RETURN BENT MARGIN DEFINING A CHANNEL SLIDABLY RECEIVING SAID FLANGE EXTENSION IN TIGHT FRICTION CONTACT, AND MEANS POSITIVELY LIMITING MOVEMENT OF SAID ADJACENT PANELS AWAY FROM ONE ANOTHER.
Claim 2
Dependent Claim
112 words
IN A CEILING STRUCTURE COMPOSED OF INDIVIDUAL SEPARABLE PANELS ARRANGED EDGE TO FORM A CONTINUOUS CEILING, A CONNECTION BETWEEN THE EDGES OF ADJACENT PANELS, SAID CONNECTION INCLUDING AN UPWARDLY EXTENDING FLANGE CARRIED BY THE EDGE OF ONE OF SAID ADJACENT PANELS, AND A DOWNWARDLY OPENING HOOK CARRIED BY THE EDGE OF THE OTHER OF SAID ADJACENT PANELS ENGAGED OVER AND SUPPORTED BY SAID FLANGE, SAID FLANGE HAVING AN EXTENSION AT RIGHT ANGLES THERETO, THE PANEL EDGE BY WHICH SAID FLANGE IS CARRIED HAVING A RETURN BENT MARGIN DEFINING A CHANNEL SLIDABLY RECEIVING SAID FLANGE EXTENSION IN TIGHT FRICTION CONTACT, AND MEANS POSITIVELY LIMITING MOVEMENT OF SAID ADJACENT PANELS AWAY FROM ONE ANOTHER.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |