Patent US3051593A successfully refreshed from Google Patents.
US3051593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for increasing the scratch resistance of glass
Assignee: EIDP Inc
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Filing: 1960-09-27
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Granted: 1962-08-28
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Expires: 1980-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Louis Gray
- 👤 Dettre Robert Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/256; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/212; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/111; C03C2218/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A PROCESS FOR INCREASING THE STARCH RESISTANCE OF A GLASS BODY, THE STEPS CONSISTING OF APPLYING TO THE SURFACE OF SAID BODY AN AQUEOUS SOLUTION OF AN ORGANIC TITANATE, ALLOWING THE EXCESS MOISTURE TO DRAIN, SUBJECTING THE TREATED GLASS TO HEATING AT A TEMPERATURE SUFFICIENT TO ANNEAL THE GLASS BUT BELOW THAT AT WHICH PERCEPTIBLE DEFORMATION OF THE SHAPE OF THE GLASS BODY STEPS IN, COOLING THE GLASS BODY AND ALLOWING THE SAME TO STAND IN OPEN AIR FOR NOT LESS THAN 20 MINUTES BEFOR EXPOSING THE SAME TO HANDLING WHEREIN RUBBING OF THE GLASS BODY AGAINST OTHER GLASS BODIES IS LIKELY TO OCCUR, SAID ORGANIC TITANATE BEING A TITANATE ESTER COMPOSITION OBTAINED BY SUBJECTING ONE MOLE OF A TETRAALKYL TITANATE WHOSE ALKYL RADICALS CONTAIN FROM 2 TO 4 C-ATOMS TO TRANSESTERIFICATION WITH FROM 2 TO 3 MOLES OF AN ALKANOLAMINE OF THE FORMULA
Claim 2
Dependent Claim
145 words
IN A PROCESS FOR INCREASING THE STARCH RESISTANCE OF A GLASS BODY, THE STEPS CONSISTING OF APPLYING TO THE SURFACE OF SAID BODY AN AQUEOUS SOLUTION OF AN ORGANIC TITANATE, ALLOWING THE EXCESS MOISTURE TO DRAIN, SUBJECTING THE TREATED GLASS TO HEATING AT A TEMPERATURE SUFFICIENT TO ANNEAL THE GLASS BUT BELOW THAT AT WHICH PERCEPTIBLE DEFORMATION OF THE SHAPE OF THE GLASS BODY STEPS IN, COOLING THE GLASS BODY AND ALLOWING THE SAME TO STAND IN OPEN AIR FOR NOT LESS THAN 20 MINUTES BEFOR EXPOSING THE SAME TO HANDLING WHEREIN RUBBING OF THE GLASS BODY AGAINST OTHER GLASS BODIES IS LIKELY TO OCCUR, SAID ORGANIC TITANATE BEING A TITANATE ESTER COMPOSITION OBTAINED BY SUBJECTING ONE MOLE OF A TETRAALKYL TITANATE WHOSE ALKYL RADICALS CONTAIN FROM 2 TO 4 C-ATOMS TO TRANSESTERIFICATION WITH FROM 2 TO 3 MOLES OF AN ALKANOLAMINE OF THE FORMULA
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |