US3257932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof vent construction
Assignee: LUDWIG Manufacturing CO
•
Filing: 1965-02-01
•
Granted: 1966-06-28
•
Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Honold Ludwig
- 👤 Jr Frederick N Feer
- 👤 Frederick J Mack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:53
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03; E04D13/0325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A BUILDING CONSTRUCTION, HAVING A ROOF WITH AN OPENING THEREIN THROUGH WHICH VENTILATION CAN TAKE PLACE, A VENTILATOR COLLAR SECURED TO THE ROOF AROUND THE OPENING EXTENDING UPWARDLY AND HAVING CORNERS, POSTS SECURED AT THE CORNERS OF THE COLLAR EXTENDING UP ABOVE THE COLLAR, A VENTILATOR COVER COMPRISING A ROOF PANEL EXTENDING OVER THE SPACE WITHIN THE COLLAR AND OUTWARDLY THEREFROM, SAID ROOF PANEL COMPRISING A PLURALITY OF METALLIC EXTRUSIONS ARRANGED SIDE BY SIDE AND HAVING SNAP-IN INTERLOCK CONNECTIONS TO ONE ANOTHER WITH ONE SIDE HAVING WEBS FORMING A CONTINUOUS SURFACE FOR THE OUTSIDE OF THE PANEL AND THE OTHER SIDE HAVING FLANGES THEREON, SUPPORT BRACKETS SECURED TO THE FLANGES OF THE EXTRUSIONS EXTENDING TRANSVERSE TO THE LENGTH OF THE EXTRUSIONS, SAID BRACKETS BEING SECURED TO THE TOP OF THE COLLAR POSTS FOR SUPPORT OF THE ROOF PANEL, SAID VENTILATOR COVER INCLUDING SIDE PANELS EXTENDING DOWNWARDLY FROM THE ENDS OF THE ROOF PANEL TO A LEVEL BELOW THE UPPER LEVEL OF THE VENTILATOR COLLAR, WHEREIN TWO OPPOSITE SIDE PANELS OF THE VENTILATOR COVER CONSIST OF SNAP-IN METALLIC EXTRUSIONS INTERCONNECTED WITH THE EXTRUSIONS OF THE ROOF PANEL.
Claim 2
Dependent Claim
187 words
IN A BUILDING CONSTRUCTION, HAVING A ROOF WITH AN OPENING THEREIN THROUGH WHICH VENTILATION CAN TAKE PLACE, A VENTILATOR COLLAR SECURED TO THE ROOF AROUND THE OPENING EXTENDING UPWARDLY AND HAVING CORNERS, POSTS SECURED AT THE CORNERS OF THE COLLAR EXTENDING UP ABOVE THE COLLAR, A VENTILATOR COVER COMPRISING A ROOF PANEL EXTENDING OVER THE SPACE WITHIN THE COLLAR AND OUTWARDLY THEREFROM, SAID ROOF PANEL COMPRISING A PLURALITY OF METALLIC EXTRUSIONS ARRANGED SIDE BY SIDE AND HAVING SNAP-IN INTERLOCK CONNECTIONS TO ONE ANOTHER WITH ONE SIDE HAVING WEBS FORMING A CONTINUOUS SURFACE FOR THE OUTSIDE OF THE PANEL AND THE OTHER SIDE HAVING FLANGES THEREON, SUPPORT BRACKETS SECURED TO THE FLANGES OF THE EXTRUSIONS EXTENDING TRANSVERSE TO THE LENGTH OF THE EXTRUSIONS, SAID BRACKETS BEING SECURED TO THE TOP OF THE COLLAR POSTS FOR SUPPORT OF THE ROOF PANEL, SAID VENTILATOR COVER INCLUDING SIDE PANELS EXTENDING DOWNWARDLY FROM THE ENDS OF THE ROOF PANEL TO A LEVEL BELOW THE UPPER LEVEL OF THE VENTILATOR COLLAR, WHEREIN TWO OPPOSITE SIDE PANELS OF THE VENTILATOR COVER CONSIST OF SNAP-IN METALLIC EXTRUSIONS INTERCONNECTED WITH THE EXTRUSIONS OF THE ROOF PANEL.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |