US3051752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of n, n, n', n', n", n"-hexasubstituted 1, 2, 3-triaminopropanes
Assignee: Phillips Petroleum Co
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Filing: 1957-01-31
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Granted: 1962-08-28
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Richard C Doss
- 👤 Howard W Bost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:45
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS WHICH COMPRISES REACTING A MATERIAL OF THE FORMULA
Claim 2
Dependent Claim
10 words
A PROCESS WHICH COMPRISES REACTING A MATERIAL 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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |