US1748331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing organic mercury compounds
Assignee: EIDP Inc
•
Filing: 1927-04-15
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Granted: 1930-02-25
•
Expires: 1947-04-15
Abstract
No abstract record available.
Inventors
- 👤 Engelmann Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10; C07F3/12
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) | 1933-02-24 | 1933-08-26 | 1934-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-24 | 1937-08-26 | 1938-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-24 | 1941-08-26 | 1942-02-25 | $7700.00 | Window Closed / Lapsed |