US4018854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxyphosphonates
Assignee: EIDP Inc
•
Filing: 1975-06-25
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Granted: 1977-04-19
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Expires: 1995-06-25
Abstract
Abstract Carboxyphosphonates such as trisodium carboxyphosphonate are useful for regulation of plant growth.
Inventors
- 👤 Colin Leslie McIntosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:51
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4062; C07F9/4065
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
A compound of the formula: ##STR23## wherein M is sodium, lithium, potassium, calcium, magnesium, or barium R is alkyl of 1 to 8 carbons, optionally substituted with a chlorine, a bromine, a fluorine, or an iodine atom; alkenyl of 3 to 8 carbon atoms, or ##STR24## where A is chlorine or methyl, B is chlorine or methyl, n is 0 or 1, m is 0 or 1.
Claim 2
Dependent Claim
67 words
A compound of the formula: ##STR23## wherein M is sodium, lithium, potassium, calcium, magnesium, or barium R is alkyl of 1 to 8 carbons, optionally substituted with a chlorine, a bromine, a fluorine, or an iodine atom; alkenyl of 3 to 8 carbon atoms, or ##STR24## where A is chlorine or methyl, B is chlorine or methyl, n is 0 or 1, m is 0 or 1.
Claim 3
Dependent Claim
8 words
The compound of claim 1, disodium methyl carboxyphosphonate.
References Cited (Backward Citations)
US3943201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |