US2964916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of inert atmospheres in storage vessels, fuel tanks and the like
Assignee: BOC Group Ltd
•
Filing: 1958-10-10
•
Granted: 1960-12-20
•
Expires: 1978-10-10
Abstract
No abstract record available.
Inventors
- 👤 Keeping William Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38; B65D90/44; F; F17; F17C; F17C9/00; F17C9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2341268A
Cited
US2440930A
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US2525597A
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US2650478A
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US2764873A
Cited
US2916889A
Cited
US2908145A
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 |