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US3817811A Expired / Lapsed US ⏱️ 0.0 years remaining

Autoclave for glass laminates

Assignee: Saint Gobain Industries SA
•
Filing: 1971-08-20
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Granted: 1974-06-18
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Expires: 1991-08-20
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Abstract

Abstract A METHOD OF ADHESIVELY INTERCONNECTING A STACK OF SHEETS WHICH CAN BE THERMALLY CONJOINED AT THEIR PROXIMATE FACES WHICH COMPRISES IMMERSING THE STACK IN A HOT LIQUID BATH FOR A TIME AT A TEMPERATURE AT WHICH THE SHEETS ADHERE, REMOVING THE CONJOINED STACK FROM THE HOT LIQUID, IMMERSING THE STACK IN A COLD BATH AT RIGIDLY ING TEMPERATURE, AND REMOVING THE RIGID STACK FROM THE COLD LIQUID, THE OBJECTS AS TO APPARATUS ARE ACCOMPLISHED BY APPARATUS FOR THE THERMAL TREATMENT WITH PRESSURE OF OBJECTS WHICH COMPRISES A PLURALITY OF TANKS MEANS TO HEAT THE TANKS TO DIFFERENT TEMPERATURES, MEANS TO PUT AN OBJECT INTO ONE SAID TANK, MEANS TO TRANSFER THE OBJECT TO ANOTHER SAID TANK, AND PNEUMATIC MEANS TO IMPOSE LIQUID PRESSURE UPON THE OBJECT WITHIN A SAID TANK.

Inventors

  • 👤 F Halberschmidt
  • 👤 H Steffens
  • 👤 K Linberg
  • 👤 P Roentgen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 08:02
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10871; B32B17/1055; B32B17/10761; B32B17/10825; B32B17/10834; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242

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) 1977-06-17 1977-12-17 1978-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-17 1981-12-17 1982-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-17 1985-12-17 1986-06-18 $7700.00 Window Closed / Lapsed

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