US3182773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam type construction
Assignee: Individual
•
Filing: 1960-12-30
•
Granted: 1965-05-11
•
Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Laaksonen Mauno Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:07
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04B; E04B9/00; E04B9/34; E04B9/36; E04B9/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A SUSPENDED BEAM CEILING COMPRISING A PLURALITY OF SUBSTANTIALLY PARALLEL U-SHAPED BEAMS EACH OF THE EDGES OF THE SIDES OF SAID U-SHAPED BEAMS CONTAINING A PROJECTION THEREON, A PLURALITY OF CEILING JOISTS, A PLURALITY OF SUPPORT MEMBERS FOR SUPPORTING THE JOISTS, EACH OF THE JOISTS INCLUDING A GENERALLY VERTICALLY DISPOSED FLANGE HAVING SPACED-APART CUT-AWAY PORTIONS FORMED ALONG THE LOWER EDGE THEREOF TO PROVIDE A PLURALITY OF SPACED-APART LIPS ALONG SAID EDGE SEPARATED BY THE CUT-AWAY PORTIONS, OPPOSITE END OF EACH LIP BEING FORMED WITH INDENTATIONS ADAPTED TO RECEIVE THE PROJECTIONS TO FORM A CEILING OF PARALLEL DISPOSED BEAMS SUPPORTED BY THE CEILING JOISTS WITH EACH BEAM BEING SUPPORTED BY ENGAGEMENT OF THE PROJECTION ON THE SIDES THEREOF IN THE INDENTATIONS OF SAID JOIST FLANGES, AND EACH OF THE SIDES OF SAID U-SHAPED BEAMS EXERTING AN ELASTIC FORCE TENDING TO RETAIN THE PROJECTION THEREON INTO THE CORRESPONSING INDENTATION IN THE LIP ON THE FLANGE OF THE CEILING JOIST.
Claim 2
Dependent Claim
157 words
A SUSPENDED BEAM CEILING COMPRISING A PLURALITY OF SUBSTANTIALLY PARALLEL U-SHAPED BEAMS EACH OF THE EDGES OF THE SIDES OF SAID U-SHAPED BEAMS CONTAINING A PROJECTION THEREON, A PLURALITY OF CEILING JOISTS, A PLURALITY OF SUPPORT MEMBERS FOR SUPPORTING THE JOISTS, EACH OF THE JOISTS INCLUDING A GENERALLY VERTICALLY DISPOSED FLANGE HAVING SPACED-APART CUT-AWAY PORTIONS FORMED ALONG THE LOWER EDGE THEREOF TO PROVIDE A PLURALITY OF SPACED-APART LIPS ALONG SAID EDGE SEPARATED BY THE CUT-AWAY PORTIONS, OPPOSITE END OF EACH LIP BEING FORMED WITH INDENTATIONS ADAPTED TO RECEIVE THE PROJECTIONS TO FORM A CEILING OF PARALLEL DISPOSED BEAMS SUPPORTED BY THE CEILING JOISTS WITH EACH BEAM BEING SUPPORTED BY ENGAGEMENT OF THE PROJECTION ON THE SIDES THEREOF IN THE INDENTATIONS OF SAID JOIST FLANGES, AND EACH OF THE SIDES OF SAID U-SHAPED BEAMS EXERTING AN ELASTIC FORCE TENDING TO RETAIN THE PROJECTION THEREON INTO THE CORRESPONSING INDENTATION IN THE LIP ON THE FLANGE OF THE CEILING JOIST.
References Cited (Backward Citations)
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US1348360A
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US2041965A
Cited
US1991506A
Cited
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Cited
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Cited
FR1202235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |