Patent US3433078A successfully refreshed from Google Patents.
Patent US4563845A successfully refreshed from Google Patents.
US4563845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attic Stairway insulating and sealing device
Assignee: Individual
•
Filing: 1984-05-30
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Granted: 1986-01-14
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Expires: 2004-05-30
Abstract
Abstract Energy saving attachments for insulating attic access openings in the ceilings of houses or other buildings comprise insulating panels which attach from below to the outside of a swing-down door which closes the access opening, or to the ceiling around the access opening. The panels, which may be fitted to existing attic door installations, do not impede access to the attic, nor do they impede operation of the door or a folding stairway when such is carried by the door.
Inventors
- 👤 James J. Stipe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/01
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
An energy saving attachment for use in insulating an attic access opening, comprising a panel structure having a box or tray-like support member specifically dimensioned substantially to cover the access opening, thermal insulating material substantially filling the support member, and means for attaching the support member from below to a swing-down door closing the access opening, wherein the support member includes channel-like flanges along opposed longitudinal sides thereof and wherein the flanges and insulating material are dimensioned for sliding the panel structure into engagement with an outer panel of the attic door with said flanges gripping opposed longitudinal edges of the door to provide the attaching means.
Claim 2
Dependent Claim
107 words
An energy saving attachment for use in insulating an attic access opening, comprising a panel structure having a box or tray-like support member specifically dimensioned substantially to cover the access opening, thermal insulating material substantially filling the support member, and means for attaching the support member from below to a swing-down door closing the access opening, wherein the support member includes channel-like flanges along opposed longitudinal sides thereof and wherein the flanges and insulating material are dimensioned for sliding the panel structure into engagement with an outer panel of the attic door with said flanges gripping opposed longitudinal edges of the door to provide the attaching means.
Claim 3
Dependent Claim
30 words
The invention of claim 1 including strips of resilient sealing material disposed along outer surfaces of the flanges for engaging edge portions of the ceiling structure surrounding the access opening.
Claim 4
Dependent Claim
109 words
In combination with an attic access opening in a ceiling having a swing door closing the opening, an energy saving attachment comprising a thermally insulating panel structure and means attaching the panel structure from below to the outer surface of the door with the panel structure projecting below the door to insulate the attic access opening when the door is closed, wherein the panel structure comprises a tray-like support member filled with insulating material, and the attaching means comprises channel-like flanges along opposed longitudinal edges of the support member which grip corresponding opposed longitudinal edges of the door when the panel structure is slid into engagement with the door.
Claim 5
Dependent Claim
109 words
In combination with an attic access opening in a ceiling having a swing door closing the opening, an energy saving attachment comprising a thermally insulating panel structure and means attaching the panel structure from below to the outer surface of the door with the panel structure projecting below the door to insulate the attic access opening when the door is closed, wherein the panel structure comprises a tray-like support member filled with insulating material, and the attaching means comprises channel-like flanges along opposed longitudinal edges of the support member which grip corresponding opposed longitudinal edges of the door when the panel structure is slid into engagement with the door.
Claim 6
Dependent Claim
28 words
The invention of claim 3 including resilient sealing strips disposed along outer surfaces of said flanges for engagement with edge portions of the ceiling surrounding the access opening.
Claim 7
Dependent Claim
25 words
The invention of claim 3 including aligned openings in the insulating material and support member for passage of a pull cord for operating the door.
Claim 8
Dependent Claim
13 words
The invention of claim 3 wherein the door carries a folding attic stairway.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |