US2691650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazotizing of glycine esters
Assignee: Millennium Petrochemicals Inc
•
Filing: 1951-12-14
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Granted: 1954-10-12
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Expires: 1971-12-14
Abstract
No abstract record available.
Inventors
- 👤 John A S Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
C; C07; C07C; C07C245/00; C07C245/12; C07C245/14; C07C245/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
IN THE PROCESS FOR DIAZOTIZING GLYCINE ESTERS OF THE FORMULA
Claim 2
Dependent Claim
10 words
IN THE PROCESS FOR DIAZOTIZING GLYCINE ESTERS OF THE FORMULA
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) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |