US3574109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat insulating laminate
Assignee: Individual
•
Filing: 1968-03-27
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Granted: 1971-04-06
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Expires: 1988-03-27
Abstract
Abstract THIS INVENTION IS TO PROVIDE A HEAT INSULATING MATERIAL CONVENIENT IN HANDLING, CONSISTING OF AN ALUMINUM FOIL AND A THERMO-CONTRACTILE PLASTICS FILM BONDED WITH EACH OTHER AT SCATTERED POINTS ALL OVER THE SURFACE OF THE FILM IN ADVANCE AS A COMPOSITE SHEET AND METHOD OF FORMING A HEAT INSULATING LAYER, WHICH IS VERY EASY IN WORKING, ON AN OBJECT TO BE HEAT-INSULATED, WHEREIN THE COMPOSITE SHEET IS FIXED TO THE OBJECT AND HEATED TO PRODUCE WRINKLES BY THE SHRINKAGE OF THE FILM AND AIR SPACES BETWEEN THE ALUMINUM FOIL AND PLASTICS FILM.
Inventors
- 👤 Yutaka Yoshikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
E; E04; E04F; E04F13/00; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/322; E04C2/34; F; F16; F16L; F16L59/00; F16L59/06; F16L59/07; F16L59/08; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B2001/7691; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24446; Y10T428/24479; Y10T428/24496; Y10T428/2457; Y10T428/24628; Y10T428/24669; Y10T428/24752; Y10T428/24802; Y10T428/24826; Y10T428/24917; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/266
Claims Analysis
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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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |