Patent US2746961A successfully refreshed from Google Patents.
Patent US2547632A successfully refreshed from Google Patents.
US2547632A
Expired / Lapsed
US
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Sun screen with plastic warp
Assignee: Ewing Development Co
•
Filing: 1947-06-07
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Granted: 1951-04-03
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Expires: 1967-06-07
Abstract
No abstract record available.
Inventors
- 👤 Walkley B Ewing
- 👤 John J Grebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:22
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; Y; Y10; Y10S; Y10S160/00; Y10S160/07; Y10S425/00; Y10S425/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SUNSCREEN PANEL HAVING A PLURALITY OF SIMILARLY DISPOSED, PARALLEL, METALLIC LOUVERS OF ELONGATED CROSS-SECTION THROUGHOUT THEIR LENGTHS AND MEANS HOLDING SAID LOUVERS IN SELECTED POSITIONS INCLUDING A PLURALITY OF WARP MEMBERS ARRANGED PERPENDICULARLY TO THE LONGITUDINAL AXES OF THE LOUVERS, THE IMPROVEMENT IN SAID MEANS COMPRISING; A PLURALITY OF SPACED NOTCHES IN AT LEAST ONE EDGE OF EACH LOUVER, THE SAID CORRESPONDING SEVERAL LOUVERS BEING VERTICALLY ALIGNED WITH RESPECT TO EACH OTHER; EACH WARP MEMBER INCLUDING A PAIR OF WARP THREADS OF RESILIENT, SYNTHETIC, ORGANIC MATERIAL OPPOSED TO EACH OTHER ON OPPOSITE SIDES OF THE SUNSCREEN PANEL AND ENGAGING SAID LOUVERS AT THE OPPOSITE LATERAL EDGES THEREOF, THE WARP THREADS ON THE SIDE OF SAID LOUVERS HAVING THE NOTCHES BEING
Claim 2
Dependent Claim
121 words
A SUNSCREEN PANEL HAVING A PLURALITY OF SIMILARLY DISPOSED, PARALLEL, METALLIC LOUVERS OF ELONGATED CROSS-SECTION THROUGHOUT THEIR LENGTHS AND MEANS HOLDING SAID LOUVERS IN SELECTED POSITIONS INCLUDING A PLURALITY OF WARP MEMBERS ARRANGED PERPENDICULARLY TO THE LONGITUDINAL AXES OF THE LOUVERS, THE IMPROVEMENT IN SAID MEANS COMPRISING; A PLURALITY OF SPACED NOTCHES IN AT LEAST ONE EDGE OF EACH LOUVER, THE SAID CORRESPONDING SEVERAL LOUVERS BEING VERTICALLY ALIGNED WITH RESPECT TO EACH OTHER; EACH WARP MEMBER INCLUDING A PAIR OF WARP THREADS OF RESILIENT, SYNTHETIC, ORGANIC MATERIAL OPPOSED TO EACH OTHER ON OPPOSITE SIDES OF THE SUNSCREEN PANEL AND ENGAGING SAID LOUVERS AT THE OPPOSITE LATERAL EDGES THEREOF, THE WARP THREADS ON THE SIDE OF SAID LOUVERS HAVING THE NOTCHES BEING
References Cited (Backward Citations)
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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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |