US2609269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glare screen
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1950-04-04
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Granted: 1952-09-02
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Expires: 1970-04-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Ryan
- 👤 Paul T Mattimoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:09
CPC Classifications
B; B60; B60J; B60J3/00; B60J3/007; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10339
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A METHOD OF PRODUCING A LAMINATED SAFETY GLASS ANTIGLARE SCREEN HAVING A DYED AREA OF GRADUALLY DECREASING HUE FROM AN EDGE TOWARD THE MIDDLE THEREOF, THE STEPS OF DYEING AN AREA OF A SHEET OF POLYVINYL ACETAL RESIN PLASTIC PRIOR TO LAMINATING IT WITH A GLASS SHEET WHICH COMPRISES, SUSPENDING THE SHEET TO BE DYED ABOVE A BATH OF A SOLUTION OF DYE IN A LIQUID SWELLING AGENT FOR THE PLASTIC AND SOLVENT FOR THE DYE AND A DILUENT, CAUSING RELATIVE MOVEMENT BETWEEN SAID SHEET AND SAID DYE BATH TO GRADUALLY IMMERSE THE FORMER IN THE LATTER FOR A PREDETERMINED DISTANCE AND AT PREDETERMINED RATES OF SPEED, THEN QUICKLY WITHDRAWING THE PLASTIC FROM THE DYE BATH, IMMEDIATELY RINSING THE DYED AREA WITH A RINSE COMPRISING A LIQUID SWELLING AGENT FOR THE PLASTIC AND SOLVENT FOR THE DYE AND A DILUENT AND HAVING A CONCENTRATION OF SWELLING AGENT THAT IS NO LESS THAN THE CONCENTRATION OF SWELLING AGENT IN SAID DYE BATH TO BLEND THE DYED AND UNDYED AREAS, THEN RINSING THE DYED AREA WITH WATER, AND FINALLY DRYING SAID DYED AND RINSED PLASTIC SHEET.
Claim 2
Dependent Claim
185 words
IN A METHOD OF PRODUCING A LAMINATED SAFETY GLASS ANTIGLARE SCREEN HAVING A DYED AREA OF GRADUALLY DECREASING HUE FROM AN EDGE TOWARD THE MIDDLE THEREOF, THE STEPS OF DYEING AN AREA OF A SHEET OF POLYVINYL ACETAL RESIN PLASTIC PRIOR TO LAMINATING IT WITH A GLASS SHEET WHICH COMPRISES, SUSPENDING THE SHEET TO BE DYED ABOVE A BATH OF A SOLUTION OF DYE IN A LIQUID SWELLING AGENT FOR THE PLASTIC AND SOLVENT FOR THE DYE AND A DILUENT, CAUSING RELATIVE MOVEMENT BETWEEN SAID SHEET AND SAID DYE BATH TO GRADUALLY IMMERSE THE FORMER IN THE LATTER FOR A PREDETERMINED DISTANCE AND AT PREDETERMINED RATES OF SPEED, THEN QUICKLY WITHDRAWING THE PLASTIC FROM THE DYE BATH, IMMEDIATELY RINSING THE DYED AREA WITH A RINSE COMPRISING A LIQUID SWELLING AGENT FOR THE PLASTIC AND SOLVENT FOR THE DYE AND A DILUENT AND HAVING A CONCENTRATION OF SWELLING AGENT THAT IS NO LESS THAN THE CONCENTRATION OF SWELLING AGENT IN SAID DYE BATH TO BLEND THE DYED AND UNDYED AREAS, THEN RINSING THE DYED AREA WITH WATER, AND FINALLY DRYING SAID DYED AND RINSED PLASTIC SHEET.
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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |