Patent US2936323A successfully refreshed from Google Patents.
US2936323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical composition and process
Assignee: Diamond Shamrock Corp
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Filing: 1957-10-16
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Granted: 1960-05-10
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Expires: 1977-10-16
Abstract
No abstract record available.
Inventors
- 👤 Jamal S Eden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12; C09; C09B; C09B62/00; C09B62/44; C09B62/78
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
COMPOUNDS REPRESENTED BY THE STRUCTURE:
Claim 2
Dependent Claim
5 words
COMPOUNDS REPRESENTED BY THE STRUCTURE:
Claim 3
Independent Claim
9 words
THE METHOD OF PREPARING AN AMIDE OF THE FORMULA:
Claim 4
Independent Claim
9 words
THE METHOD OF PREPARING AN AMIDE 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) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |