Patent US3626037A successfully refreshed from Google Patents.
US3626037A
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Mono-2-haloethyl esters of 2-haloethanephosphonic acid
Assignee: Rhone Poulenc Nederland BV
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Filing: 1968-03-05
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Granted: 1971-12-07
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Expires: 1988-03-05
Abstract
Abstract WHEREIN BOTH X''s represent the same halogen, i.e. either bromine or chlorine, preferably chlorine. The compounds are plant growth regulators comparable 2-chloroethanephosphonic acid. Mono-2-haloethyl esters of 2-haloethanephosphonic acid represented by the formula:
Inventors
- 👤 David I Randall
- 👤 Robert W Wynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:06
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C07F9/40; C07F9/4071; C07F9/4075
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
6 words
The mono-2-chloroethyl ester of 2-chloroethanephosphonic acid.
References Cited (Backward Citations)
US2708204A
Cited
US3296132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |