US2742504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heptadecyl amine compound
Assignee: Nepera Chemical Co Inc
•
Filing: 1953-03-23
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Granted: 1956-04-17
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Godfrey F Grail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:48
CPC Classifications
C; C07; C07C; C07C269/00; C07C269/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE COMPOUNDS OF THE GROUP CONSISTING OF N-HEPTADECYL-N-METHYL-N'',N''-DIMETHYL-ETHYLENE DIAMINE AND THE NON-TOXIC WATER-SOLUBLE ACID SALTS THEREOF.
Claim 2
Dependent Claim
16 words
THE COMPOUNDS OF THE GROUP CONSISTING OF N-HEPTADECYL-N-METHYL-N'',N''-DIMETHYL-ETHYLENE DIAMINE AND THE NON-TOXIC WATER-SOLUBLE ACID SALTS THEREOF.
References Cited (Backward Citations)
DE547987C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |