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US2867679A
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Gas composition for cooling and insulating purposes
Assignee: General Electric Co
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Filing: 1952-12-04
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Granted: 1959-01-06
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Expires: 1972-12-04
Abstract
No abstract record available.
Inventors
- 👤 James D Cobine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:02
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/10; H02K9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1703408A
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US1657550A
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US1559182A
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US1546234A
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US2221670A
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US2221671A
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GB553569A
Cited
US2523688A
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US2697183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |