US3059110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of gas mixtures
Assignee: BOC Group Ltd
•
Filing: 1959-07-30
•
Granted: 1962-10-16
•
Expires: 1979-07-30
Abstract
No abstract record available.
Inventors
- 👤 Nicholas S Japolsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:52
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/23; B03C1/24; B03C1/253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1123867A
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US1417189A
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US1700928A
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US1546632A
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US1553737A
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US1865425A
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US2507653A
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US2724056A
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US2533966A
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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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |