US1360876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture or production of hydrogen
Assignee: BOC Group Ltd
•
Filing: 1920-03-31
•
Granted: 1920-11-30
•
Expires: 1940-03-31
Abstract
No abstract record available.
Inventors
- 👤 Bray Sidney Whitfield
- 👤 Balfour Ian Hutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:15
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/061; C01B3/08; C01B3/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-11-30 | 1924-05-31 | 1924-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-30 | 1928-05-31 | 1928-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-30 | 1932-05-31 | 1932-11-30 | $7700.00 | Window Closed / Lapsed |