Patent US3236290A successfully refreshed from Google Patents.
US3236290A
Expired / Lapsed
US
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Method and apparatus for controlling radiation through a window
Assignee: Individual
•
Filing: 1963-02-12
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Granted: 1966-02-22
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Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Lueder Holger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:40
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/40; A; A47; A47H; A47H23/00; A47H23/02; A47H23/08; Y; Y10; Y10S; Y10S160/00; Y10S160/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A WINDOW SHADE COMPRISING: AN ELONGATED FLEXIBLE TRANSPARENT SHEET HAVING A WIDTH SUBSTANTIALLY EQUAL TO ONE DIMENSION OF SAID WINDOW AND A LENGTH AT LEAST EQUAL TO A MULTIPLE OF THE OTHER WINDOW DIMENSION; AN INFRARED REFLECTING METAL LAYER ON SAID SHEET; THE THICKNESS OF SAID METAL LAYER VARYING UNIFORMLY ALONG THE MAJOR PORTION OF THE LENGTH OF SAID SHEET FROM SUBSTANTIALLY ZERO THICKNESS ADJACENT ONE END PORTION THEREOF TO SUCH THICKNESS ADJACENT THE OTHER END PORTION AS TO BE SUBSTANTIALLY COMPLETELY OPAQUE TO RENDER THE MAJOR PORTION OF SAID
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |