US3364697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas liquefier
Assignee: BOC Group Ltd
•
Filing: 1965-10-21
•
Granted: 1968-01-23
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Garrett Michael Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J1/0275; F25J1/0276; F25B; F25B9/00; F25B9/02; F25J1/0002; F25J1/0005; F25J1/001; F25J1/0012; F25J1/0015; F25J1/0017; F25J1/002; F25J2215/00; F25J2215/32; F25J2215/34; F25J2240/00; F25J2240/40; F25J2270/00; F25J2270/08; F25J2290/00; F25J2290/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3018643A
Cited
US3095711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |