US2909544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic phosphorus complex
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-02-25
•
Granted: 1959-10-20
•
Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Gail H Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:56
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPLEX ADDITION PRODUCT OF THE FORMULA
Claim 2
Dependent Claim
7 words
A COMPLEX ADDITION PRODUCT OF THE FORMULA
References Cited (Backward Citations)
US1880516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |