US2648703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-ethoxypropyl 3-ethoxypropionate
Assignee: Union Carbide Corp
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Filing: 1951-09-27
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Granted: 1953-08-11
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Expires: 1971-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Stansbury
- 👤 Raymond W Mcnamee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:58
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PROCESS OF MAKING 3-ETHOXYPROPYL 3ETHOXYPROPIONATE WHICH CONSISTS IN REACTING 3ETHOXYPROPIONALDEHYDE IN THE PRESENCE OF ALUMINUM ISOPROPOXIDE AS CATALYST AT A TEMPERATURE OF -10* TO 80* C.
Claim 2
Dependent Claim
27 words
A PROCESS OF MAKING 3-ETHOXYPROPYL 3ETHOXYPROPIONATE WHICH CONSISTS IN REACTING 3ETHOXYPROPIONALDEHYDE IN THE PRESENCE OF ALUMINUM ISOPROPOXIDE AS CATALYST AT A TEMPERATURE OF -10* TO 80* C.
References Cited (Backward Citations)
US2501151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |