Patent US4086950A successfully refreshed from Google Patents.
US4086950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorway screen
Assignee: NECOR CORP
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Filing: 1977-03-16
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Granted: 1978-05-02
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Expires: 1997-03-16
Abstract
Abstract A doorway screen has a support extending transversely above a doorway opening. A plurality of individual flexible plastic strips or panels are at their tops secured to and suspended from the support. The strips or panels are formed to have in horizontal cross-section a relatively thin, straight central portion merging at the end edges with relatively thick bulbous or enlarged bead ends. The strips or panels are disposed to overlap each other with each of the end edges of one strip in abutment with the straight portion of an adjacent strip to define discrete pockets between adjacent end edges.
Inventors
- 👤 H. Douglas Power
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:30
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/80
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A doorway screen comprising a transverse header, a plurality of elongated flexible strips, said strips each having in transverse cross-section a relatively thin, relatively wide and substantially flat central portion and a pair of relatively thick, relatively narrow bead ends merging smoothly with said central portion whereby said bead ends when hanging freely are transversely slidable across and away from the central portion of adjacent similar strips, means for securing said strips to said header including continuous means for clamping a plurality of said strips in overlapping relationship at the top against relative transverse displacement with respect to each other and with said bead ends of alternate strips lying against said central portion of an intervening one of said strips and spaced transversely apart and defining between them substantially enclosed air pockets parallel to said bead ends, said air pockets being substantially closed at the top by said clamping means.
Claim 2
Dependent Claim
150 words
A doorway screen comprising a transverse header, a plurality of elongated flexible strips, said strips each having in transverse cross-section a relatively thin, relatively wide and substantially flat central portion and a pair of relatively thick, relatively narrow bead ends merging smoothly with said central portion whereby said bead ends when hanging freely are transversely slidable across and away from the central portion of adjacent similar strips, means for securing said strips to said header including continuous means for clamping a plurality of said strips in overlapping relationship at the top against relative transverse displacement with respect to each other and with said bead ends of alternate strips lying against said central portion of an intervening one of said strips and spaced transversely apart and defining between them substantially enclosed air pockets parallel to said bead ends, said air pockets being substantially closed at the top by said clamping means.
Claim 3
Dependent Claim
24 words
A device as in claim 1 in which said air pockets when hanging freely are substantially closed on both sides and at the top.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |