US2254124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compound of quinquevalent phosphorus
Assignee: EIDP Inc
•
Filing: 1939-06-05
•
Granted: 1941-08-26
•
Expires: 1959-06-05
Abstract
No abstract record available.
Inventors
- 👤 Stevens Philip Greeley
- 👤 Turner Howard Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:03
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C10M2223/00; C10M2223/06; C10M2223/063; C10M2223/065; Y; Y10; Y10S; Y10S209/00; Y10S209/901; Y10S209/902
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) | 1944-08-25 | 1945-02-24 | 1945-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-25 | 1949-02-24 | 1949-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-25 | 1953-02-24 | 1953-08-26 | $7700.00 | Window Closed / Lapsed |