Patent US2863782A successfully refreshed from Google Patents.
US2863782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-melting high-expansion glass
Assignee: 3M Co
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Filing: 1955-07-22
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Granted: 1958-12-09
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Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
- 👤 William R Eubank
- 👤 Warren R Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; C03C3/142; C03C27/00; C03C3/04; C03C3/062; C03C3/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DURABLE GLASS HAVING HIGH THERMAL EXPANSION AND POURABLE AS A FLUID MELT AT RAISED TEMPERATURES BELOW APPROXIMATELY 800*C. CONSISTING ESSENTIALLY OF BETWEEN 60 AND 98% BY WEIGHT OF LOW TEMPERATURE GLASSFORMERS AND BETWEEN 40 AND 2% BY WEIGHT OF COMPATIBLE DURABILILITY IMPARTING INORGANIC OXIDES, SAID COMPATIBLE OXIDES BEING INORGANIC OXIDES CAPABLE OF GOING INTO A SOLUTION WITH SAID LOW TEMPERATURES GLASSFORMERS TO FORM A HOMOGENEOUS GLASS MELT AT RAISED TEMPERATURES BELOW APPROXIMATELY 800*C., AND SAID LOW TEMPERATURE GLASSFORMERS BEING INORGANIC OXIDS HAVING A COMPOSITIONAL ANALYSIS WHICH SATISFIES THE REQUIREMENTS OF THE FOLLOWING TABLE WHEREIN APPROXIMATE AMOUNTS ARE SPECIFIED IN WEIGHT PERCENT:
Claim 2
Dependent Claim
102 words
A DURABLE GLASS HAVING HIGH THERMAL EXPANSION AND POURABLE AS A FLUID MELT AT RAISED TEMPERATURES BELOW APPROXIMATELY 800*C. CONSISTING ESSENTIALLY OF BETWEEN 60 AND 98% BY WEIGHT OF LOW TEMPERATURE GLASSFORMERS AND BETWEEN 40 AND 2% BY WEIGHT OF COMPATIBLE DURABILILITY IMPARTING INORGANIC OXIDES, SAID COMPATIBLE OXIDES BEING INORGANIC OXIDES CAPABLE OF GOING INTO A SOLUTION WITH SAID LOW TEMPERATURES GLASSFORMERS TO FORM A HOMOGENEOUS GLASS MELT AT RAISED TEMPERATURES BELOW APPROXIMATELY 800*C., AND SAID LOW TEMPERATURE GLASSFORMERS BEING INORGANIC OXIDS HAVING A COMPOSITIONAL ANALYSIS WHICH SATISFIES THE REQUIREMENTS OF THE FOLLOWING TABLE WHEREIN APPROXIMATE AMOUNTS ARE SPECIFIED IN WEIGHT PERCENT:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |