US2165948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of soluble phosphates
Assignee: EIDP Inc
•
Filing: 1937-04-21
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Granted: 1939-07-11
•
Expires: 1957-04-21
Abstract
No abstract record available.
Inventors
- 👤 Edward A Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/44; C01B25/445; C01B25/28; C01B25/40; C01B25/405
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) | 1942-07-10 | 1943-01-09 | 1943-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-10 | 1947-01-09 | 1947-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-10 | 1951-01-09 | 1951-07-11 | $7700.00 | Window Closed / Lapsed |