US3190208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling construction
Assignee: Individual
•
Filing: 1963-05-21
•
Granted: 1965-06-22
•
Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Styne
- 👤 James Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:15
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072; E; E04; E04B; E04B9/00; E04B9/02; E04B9/06; E04B9/12; E04B9/122; E04B9/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A SUSPENDED DROP CEILING TO BE SUPPORTED BY RAFTERS OR OTHER PERMANENT CEILING STRUCTURE OF THE BUILDING, THE CEILING ADAPTED TO BE SUSPENDED IN SPACED RELATION TO THE PERMANENT CEILING TO PROVIDE AN UPPER AIR SPACE, THE SUSPENDING CEILING BEING FORMED OF SPACED APART INVERTED USHAPED BEAMS AND A PLURALITY OF SPACED APART CROSS BEAMS OF INVERTED U-SHAPE, THE FIRST NAMED BEAMS AND THE CROSS BEAMS HAVING NOTCHED INTERLOCKING ENGAGEMENT AT THEIR POINT OF CROSSING, WHEREBY THE CROSS BEAMS EXTEND CONTINUOUSLY ACROSS THE FIRST-MENTIONED BEAMS EACH OF THE BEAMS BEING SHAPED FROM SHEET METAL, EACH OF THE BEAMS HAVING A DOWNWARDLY OPENING CHANNEL AND WITH THE SIDES OF THE BEAMS PROVIDED WITH A PLURALITY OF SPACED APART SLOTS THAT COMMUNICATE WITH THE AIR SPACE AND WITH THE CHANNELS, WHEREBY MECHANICALLY CONDITIONED AIR PUMPED INTO THE UPPER SPACE WILL FLOW THROUGH THE SLOTS AND THE CHANNELS FOR DISCHARGE INTO AN OCCUPIED SPACE BELOW THE CEILING, THE SIDE WALLS OF THE BEAMS HAVING RIGHT ANGLE FLANGES FOR THE RESTING SUPPORT OF CLOSURE PANELS AND MEANS TO SUPPORT THE SUSPENDED CEILING FROM EITHER THE RAFTERS OR THE SIDE WALLS.
Claim 2
Dependent Claim
186 words
A SUSPENDED DROP CEILING TO BE SUPPORTED BY RAFTERS OR OTHER PERMANENT CEILING STRUCTURE OF THE BUILDING, THE CEILING ADAPTED TO BE SUSPENDED IN SPACED RELATION TO THE PERMANENT CEILING TO PROVIDE AN UPPER AIR SPACE, THE SUSPENDING CEILING BEING FORMED OF SPACED APART INVERTED USHAPED BEAMS AND A PLURALITY OF SPACED APART CROSS BEAMS OF INVERTED U-SHAPE, THE FIRST NAMED BEAMS AND THE CROSS BEAMS HAVING NOTCHED INTERLOCKING ENGAGEMENT AT THEIR POINT OF CROSSING, WHEREBY THE CROSS BEAMS EXTEND CONTINUOUSLY ACROSS THE FIRST-MENTIONED BEAMS EACH OF THE BEAMS BEING SHAPED FROM SHEET METAL, EACH OF THE BEAMS HAVING A DOWNWARDLY OPENING CHANNEL AND WITH THE SIDES OF THE BEAMS PROVIDED WITH A PLURALITY OF SPACED APART SLOTS THAT COMMUNICATE WITH THE AIR SPACE AND WITH THE CHANNELS, WHEREBY MECHANICALLY CONDITIONED AIR PUMPED INTO THE UPPER SPACE WILL FLOW THROUGH THE SLOTS AND THE CHANNELS FOR DISCHARGE INTO AN OCCUPIED SPACE BELOW THE CEILING, THE SIDE WALLS OF THE BEAMS HAVING RIGHT ANGLE FLANGES FOR THE RESTING SUPPORT OF CLOSURE PANELS AND MEANS TO SUPPORT THE SUSPENDED CEILING FROM EITHER THE RAFTERS OR THE SIDE WALLS.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |