US3898257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical compounds
Assignee: Natural Rubber Producers & 0 R
•
Filing: 1972-05-02
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Granted: 1975-08-05
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Expires: 1992-05-02
Abstract
Abstract Compounds containing the grouping X-CH2-CH2-Si * where X is a nucleofugal group, e.g. halogen, phosphate, or sulphonium or ammonium, are useful as plant growth regulating agents, particularly as yield stimulants for Hevea brasiliensis.
Inventors
- 👤 Maurice James Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:48
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C07F9/092; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
A COMPOUND WHICH IS HYDROLYZABLE IN THE PRESENCE OF WATER TO PRODUCE ETHYLENE AND HAVING THE FORMULA:
Claim 2
Dependent Claim
17 words
A COMPOUND WHICH IS HYDROLYZABLE IN THE PRESENCE OF WATER TO PRODUCE ETHYLENE AND HAVING THE FORMULA:
Claim 3
Dependent Claim
10 words
A compound as claimed in claim 1, wherein X is:
Claim 4
Dependent Claim
16 words
A compound according to claim 1 wherein B, Q and Z are methoxy, and X is
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |