US2840600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-substituted trimethylene diamine-n'alkanoic acids, salts, and esters
Assignee: Armour and Co
•
Filing: 1955-02-02
•
Granted: 1958-06-24
•
Expires: 1975-02-02
Abstract
No abstract record available.
Inventors
- 👤 Brow Paul L Du
- 👤 Frederick W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:59
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
AS A NEW AND USEFUL COMPOSITION OF MATTER, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (I) A COMPOUND OF THE FORMULA RNH(CH2)3NH-A-COOH, WHEREIN A IS A DIVALENT HYDROCARBON RADICAL HAVING FROM 2 TO 3 CARBON ATOMS, AND R IS A RADICAL OF THE GROUP CONSISTING OF (A) ALIPHATIC HYDROCARBON RADICALS HAVING FROM 8 TO 22 CARBON ATOMS; AND (B) HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS; (II) AN ALKALI METAL SALT OF I; (III) AN ALKALINE EARTH METAL SALT OF I; (IV) A MONOAMINE SALT OF I WHEREIN THE MONOAMINE IS ONE OF THE FORMULAE RNH2, R2NH AND R3N, WHEREIN R IS A RADICAL OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 1 TO 22 CARBON ATOMS AND HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS; (V) A DIAMINE SALT OF I, WHEREIN THE DIAMINE OF THE FORMULA R''NH(CH2)NNH2, WHEREIN R'' IS OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 8 TO 22 CARBON ATOMS AND HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS, AND N IS AN INTEGER OF FROM 2 TO 5; AND (VI) A LOWER ALKYL ESTER OF I.
Claim 2
Dependent Claim
194 words
AS A NEW AND USEFUL COMPOSITION OF MATTER, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (I) A COMPOUND OF THE FORMULA RNH(CH2)3NH-A-COOH, WHEREIN A IS A DIVALENT HYDROCARBON RADICAL HAVING FROM 2 TO 3 CARBON ATOMS, AND R IS A RADICAL OF THE GROUP CONSISTING OF (A) ALIPHATIC HYDROCARBON RADICALS HAVING FROM 8 TO 22 CARBON ATOMS; AND (B) HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS; (II) AN ALKALI METAL SALT OF I; (III) AN ALKALINE EARTH METAL SALT OF I; (IV) A MONOAMINE SALT OF I WHEREIN THE MONOAMINE IS ONE OF THE FORMULAE RNH2, R2NH AND R3N, WHEREIN R IS A RADICAL OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 1 TO 22 CARBON ATOMS AND HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS; (V) A DIAMINE SALT OF I, WHEREIN THE DIAMINE OF THE FORMULA R''NH(CH2)NNH2, WHEREIN R'' IS OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 8 TO 22 CARBON ATOMS AND HYDROCARBON RADICALS AS CONTAINED IN ROSIN AND TALL OIL ACIDS, AND N IS AN INTEGER OF FROM 2 TO 5; AND (VI) A LOWER ALKYL ESTER OF I.
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |