Patent US1527121A successfully refreshed from Google Patents.
US1527121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic chloride and method of making same
Assignee: Dow Chemical Co
•
Filing: 1921-08-10
•
Granted: 1925-02-17
•
Expires: 1941-08-10
Abstract
No abstract record available.
Inventors
- 👤 Cottringer Paul
- 👤 William R Collings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
C; C01; C01F; C01F11/00; C01F11/20; C01F11/24; C01F11/30; C01F5/00; C01F5/26; C01F5/30
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) | 1928-02-17 | 1928-08-18 | 1929-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-02-17 | 1932-08-18 | 1933-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-02-17 | 1936-08-18 | 1937-02-17 | $7700.00 | Window Closed / Lapsed |