Patent US2684972A successfully refreshed from Google Patents.
US2684972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of inorganic esters
Assignee: EIDP Inc
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Filing: 1952-02-21
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Granted: 1954-07-27
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Expires: 1972-02-21
Abstract
No abstract record available.
Inventors
- 👤 John H Haslam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:25
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR PREPARING AN ORGANIC METAL ESTER WHICH COMPRISES REACTING AN ORGANIC HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF TERTIARY ALCOHOLS, ALLYLIC ALCOHOLS, AND KETO ALCOHOLS, WITH THE AMMONIA ADDITION PRODUCT OF A HALIDE OF AN ESTER-FORMING POLYVALENT METAL HAVING A VALENCE OF AT LEAST 3, AND AN ATOMIC NUMBER GREATER THAN 12 AND LESS THAN 57, SAID ADDITION PRODUCT CONTAINING AT LEAST ONE NITROGEN ATOM FOR EACH ATOM OF HALOGEN IN SAID ESTER-FORMING HALIDE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR PREPARING AN ORGANIC METAL ESTER WHICH COMPRISES REACTING AN ORGANIC HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF TERTIARY ALCOHOLS, ALLYLIC ALCOHOLS, AND KETO ALCOHOLS, WITH THE AMMONIA ADDITION PRODUCT OF A HALIDE OF AN ESTER-FORMING POLYVALENT METAL HAVING A VALENCE OF AT LEAST 3, AND AN ATOMIC NUMBER GREATER THAN 12 AND LESS THAN 57, SAID ADDITION PRODUCT CONTAINING AT LEAST ONE NITROGEN ATOM FOR EACH ATOM OF HALOGEN IN SAID ESTER-FORMING HALIDE.
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) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |