Patent US3276942A successfully refreshed from Google Patents.
US3276942A
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Assignee: WALKLEY B EWING
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Filing: 1961-08-10
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Granted: 1966-10-04
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Walkley B Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:25
CPC Classifications
A; A47; A47H; A47H23/00; A47H23/02; A47H23/08; B; B29; B29C; B29C48/00; B29C48/03; B29C48/13; B29C48/04; B29C48/09; B29C48/10; B29L; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/81; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24132; Y10T428/24273; Y10T428/24298; Y10T428/24942; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A SUNSCREEN COMPRISING, A PLURALITY OF PLASTIC WARP MEMBERS; AND A PLURALITY OF SPACED PLASTIC LOUVERS CROSSING SAID WARP MEMBERS TO FORM A MESH WITH SAID WARP MEMBERS; SAID LOUVERS HAVING AN ELONGATED CROSS-SECTION, WITH ONE EDGE THEREOF INTEGRAL WITH SAID WARP MEMBERS AT THE CROSSING JUNCTURES THEREWITH TO FORM A ONEPIECE SUNSCREEN WITH LATERALLY PROJECTING LOUVERS; EACH OF SAID LOUVERS BEING FORMED OF SEPARATE LAYERS INCLUDING A TOP LAYER AND A BOTTOM LAYER; SAID TOP LAYER GREATER HEAT ABSORPTION CHARACTERISTICS AND A LARGER COEFFICIENT OF THERMAL EXPANSION THAN THOSE OF SAID BOTTOM LAYER WHEREBY SAID TOP AND BOTTOM LAYERS ARE DIFFERENTLY RESPONSIVE TO RADIANT LIGHT ENERGY IMPINGED ON SAID TOP LAYER TO CAUSE DOWNWARD DEFORMATION OF SAID LOUVERS ABOUT SAID ONE EDGE OF EACH LOUVER GENERALLY IN PROPORTION TO RADIANT LIGHT ENERGY IMPINGED ON THE TOP LAYER.
Claim 2
Dependent Claim
138 words
A SUNSCREEN COMPRISING, A PLURALITY OF PLASTIC WARP MEMBERS; AND A PLURALITY OF SPACED PLASTIC LOUVERS CROSSING SAID WARP MEMBERS TO FORM A MESH WITH SAID WARP MEMBERS; SAID LOUVERS HAVING AN ELONGATED CROSS-SECTION, WITH ONE EDGE THEREOF INTEGRAL WITH SAID WARP MEMBERS AT THE CROSSING JUNCTURES THEREWITH TO FORM A ONEPIECE SUNSCREEN WITH LATERALLY PROJECTING LOUVERS; EACH OF SAID LOUVERS BEING FORMED OF SEPARATE LAYERS INCLUDING A TOP LAYER AND A BOTTOM LAYER; SAID TOP LAYER GREATER HEAT ABSORPTION CHARACTERISTICS AND A LARGER COEFFICIENT OF THERMAL EXPANSION THAN THOSE OF SAID BOTTOM LAYER WHEREBY SAID TOP AND BOTTOM LAYERS ARE DIFFERENTLY RESPONSIVE TO RADIANT LIGHT ENERGY IMPINGED ON SAID TOP LAYER TO CAUSE DOWNWARD DEFORMATION OF SAID LOUVERS ABOUT SAID ONE EDGE OF EACH LOUVER GENERALLY IN PROPORTION TO RADIANT LIGHT ENERGY IMPINGED ON THE TOP LAYER.
References Cited (Backward Citations)
US2238427A
Cited
US2522527A
Cited
US2547632A
Cited
US2752276A
Cited
US2919467A
Cited
US2925634A
Cited
US2959117A
Cited
US3029174A
Cited
US3060832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |