Patent US3055882A successfully refreshed from Google Patents.
US3055882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction process for preparation of cyclic nitrogen compounds
Assignee: BASF Corp
•
Filing: 1959-06-10
•
Granted: 1962-09-25
•
Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Mull Robert Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:11
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
56 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF (NN-ALKYLEN-IMINO)-LOWER ALKYL CARBOXYLIC ACID GUANIDE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBION ATOMS, AND THE LOWER ALKYL CARBOXYLIC ACID PORTION HAS FROM TWO TO THREE CARBON ATOMS AND SEPARATES THE N,N-ALKYLENEIMINO PROTION FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ACID ADDITION SALT THEREOF.
Claim 2
Dependent Claim
56 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF (NN-ALKYLEN-IMINO)-LOWER ALKYL CARBOXYLIC ACID GUANIDE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBION ATOMS, AND THE LOWER ALKYL CARBOXYLIC ACID PORTION HAS FROM TWO TO THREE CARBON ATOMS AND SEPARATES THE N,N-ALKYLENEIMINO PROTION FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ACID ADDITION SALT THEREOF.
Claim 3
Dependent Claim
59 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF GUANIDINO-LOWER ALKYL CARBOXYLIC ACID N,N-ALKYLENEIMIDE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBOM ATOMS, AND THE LOWER ALKYL CARBOXYLIC ACID PORTION HAS FROM TWO TO THREE CARBON ATOMS AND SEPARTATES THE N,N-ALKYLENE-IMINO PROTION FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ACID-ADDITION SALT THEREOF. 5. (1-N,N-HEPTAMETHYLENE-IMINO)-ACETIC ACID GUANIDE.
Claim 4
Dependent Claim
59 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF GUANIDINO-LOWER ALKYL CARBOXYLIC ACID N,N-ALKYLENEIMIDE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBOM ATOMS, AND THE LOWER ALKYL CARBOXYLIC ACID PORTION HAS FROM TWO TO THREE CARBON ATOMS AND SEPARTATES THE N,N-ALKYLENE-IMINO PROTION FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ACID-ADDITION SALT THEREOF. 5. (1-N,N-HEPTAMETHYLENE-IMINO)-ACETIC ACID GUANIDE.
Claim 5
Dependent Claim
70 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF (2-R-1-N,N-ALKYLENE-IMIMINO)-LOWER ALKYL -GUANIDINE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBON ATOMS, R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF OXO OF THE FORMULA =0 AND THIONIN OF THE FORMULA =S, AND LOWER ALKYL HAS FROM TWO TO THREE CARBON ATOMS AND SEPARATES THE 2-R-1-N,N-ALKYLENE-IMINO PORTING FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ADDITION SALTS THEREOF.
Claim 6
Dependent Claim
70 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF (2-R-1-N,N-ALKYLENE-IMIMINO)-LOWER ALKYL -GUANIDINE, IN WHICH ALKYLENE HAS SIX TO EIGHT CARBON ATOMS, R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF OXO OF THE FORMULA =0 AND THIONIN OF THE FORMULA =S, AND LOWER ALKYL HAS FROM TWO TO THREE CARBON ATOMS AND SEPARATES THE 2-R-1-N,N-ALKYLENE-IMINO PORTING FROM THE GUANIDINO GROUP BY TWO TO THREE CARBON ATOMS, AND ADDITION SALTS THEREOF.
References Cited (Backward Citations)
US2852528A
Cited
DE874447C
Cited
US2852510A
Cited
US2846382A
Cited
US2909523A
Cited
US2957867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |