Patent US2588968A successfully refreshed from Google Patents.
US2588968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-acylamino styrenes
Assignee: Eastman Kodak Co
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Filing: 1948-12-29
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Granted: 1952-03-11
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Expires: 1968-12-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 Theodore E Stanin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:37
CPC Classifications
C; C08; C08F; C08F26/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN ALPHA-ACYLAMINO STYRENE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
AN ALPHA-ACYLAMINO STYRENE HAVING THE GENERAL 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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |