US1247510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining barium hydrate.
Assignee: Individual
•
Filing: 1917-03-06
•
Granted: 1917-11-20
•
Expires: 1937-03-06
Abstract
No abstract record available.
Inventors
- 👤 Camille Deguide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:34
CPC Classifications
C; C01; C01F; C01F11/00; C01F11/02; C01F11/04; C01F11/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1920-11-19 | 1921-05-21 | 1921-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-11-19 | 1925-05-21 | 1925-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-11-19 | 1929-05-21 | 1929-11-20 | $7700.00 | Window Closed / Lapsed |