Patent US3383397A successfully refreshed from Google Patents.
US3383397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-amino-2-hydroxypropyl esters and methods for preparing the same
Assignee: Kraton Chemical LLC
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Filing: 1965-01-14
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Granted: 1968-05-14
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Milks John Edward
- 👤 Dworkin Robert Dally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:56
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52; C07C69/533; C07C69/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMINO ESTER OF THE STRUCTURE:
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMINO ESTER OF THE STRUCTURE:
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |