US2964919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter system for liquefied gases
Assignee: BOC Group Ltd
•
Filing: 1959-07-06
•
Granted: 1960-12-20
•
Expires: 1979-07-06
Abstract
No abstract record available.
Inventors
- 👤 Howlett Rex Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:37
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; B; B64; B64D; B64D13/00; B64D13/02; B64D13/04; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10T; Y10T137/00; Y10T137/8593
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2576985A
Cited
US2565872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |