Patent JPH0261663A successfully refreshed from Google Patents.
US2881176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complexes of 2-heptadecylimidazolines
Assignee: Union Carbide Corp
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Filing: 1957-03-11
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Granted: 1959-04-07
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 John N Hogsett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:31
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A CHELATE HAVING THE STRUCTURAL FORMULA MRN, WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF 2-HEPTADECYLIMIDAZOLINE AND ACID SALTS THEREOF, M IS BOTH THE ANION AND CATION OF AN INORGANIC SALT OF A METAL OF GROUP 1 OF THE PERIODIC TABLE AND N IS AN INTEGER HAVING A VALUE OF ONE-HALF THE COORDINATION NUMBER OF SAID METAL.
Claim 2
Dependent Claim
60 words
A CHELATE HAVING THE STRUCTURAL FORMULA MRN, WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF 2-HEPTADECYLIMIDAZOLINE AND ACID SALTS THEREOF, M IS BOTH THE ANION AND CATION OF AN INORGANIC SALT OF A METAL OF GROUP 1 OF THE PERIODIC TABLE AND N IS AN INTEGER HAVING A VALUE OF ONE-HALF THE COORDINATION NUMBER OF SAID METAL.
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |