Surface protecting sheet
Abstract
Abstract A SURFACE PROTECTING SHEET ACCORDING TO THE INVENTION COMPRISES A FLEXIBLE PLASTIC SHEET (POLYVINYL CHLORIDE, ETC.) OF A THICKNESS OF 0.20 TO 0.02 MM. AND A CURED ACRYLIC RUBBER LAYER NOT OVER 0.05MM. THICK ON ONE SURFACE THEREOF, SAID RUBBER LAYER BEING MADE BY CROSS-LINKING A SYNTHETIC RUBBER CONSISTING MAINLY OF ACRYLIC ESTER. A LAYER OF LOW FRICTIONAL RESISTANCE IS PREFERABLY PROVIDED ON THE OTHER SURFACE OF THE FLEXIBLE PLASTIC SHEET. THE SHEET IS USEFUL IN PROTECTING THE SURFACE OF A PLATE, SHEET, ETC. OF METAL OR THE LIKE WHILE AFFORDING A VIEW OF SUCH SURFACE. THE PRESENT SHEET HAS HIGH RESISTANCE TO LIGHT AND WEATHER, DOES NOT TEND TO ADHERE TO THE PROTECTED SURFACE WHEN REMOVED THEREFROM, AND IS SUFFICIENTLY STRONG TO RESIST PRESSURES APPLIED TO THE METAL SHEET OR THE LIKE DURING DEEP DRAWING, PRESS-BINDING, ROLL FORMING, ETC., WITHOUT TEAR OR DAMAGE.
Inventors
- 👤 Yutaka Hori
- 👤 Zeno Honda
- 👤 Yoichi Nomura
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |