US2576306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted imidazolidine compounds and method for preparing them
Assignee: Commercial Solvents Corp
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Filing: 1948-08-28
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Granted: 1951-11-27
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Expires: 1968-08-28
Abstract
No abstract record available.
Inventors
- 👤 Glen H Morey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:58
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/06; C07D233/00; C07D233/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A COMPOSITION OF MATTER COMPRISING SUBSTITUTED IMIDAZOLIDINES HAVING THE FORMULA:
Claim 2
Dependent Claim
10 words
A COMPOSITION OF MATTER COMPRISING SUBSTITUTED IMIDAZOLIDINES HAVING 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) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |