Patent US2875219A successfully refreshed from Google Patents.
US2875219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous bonding agents
Assignee: Milacron Inc
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Filing: 1955-03-15
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Granted: 1959-02-24
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Expires: 1975-03-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Huber
- 👤 Paul F Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
COMPOUNDS ADAPTED TO BE INCORPORATED IN BITUMINOUS COMPOSITIONS TO IMPROVE THE COATING PROPERTIES THEREOF, SAID COMPOUNDS BEING AMIDES OF N,N-DI(AMINOALKYL-N-ALKYL) AMINES AND SALTS OF SUCH AMIDES, THE AMIDE-FORMING ACIDS BEING ORGANIC ACIDS HAVING FROM 2 TO 20 CARBON ATOMS AND THE SALT-FORMING ACIDS, IF PRESENT, AND AT LEAST ONE OF THE AMIDE-FORMING ACIDS ACIDS HAVING FROM 10 TO 20 CARBON ATOMS.
Claim 2
Dependent Claim
61 words
COMPOUNDS ADAPTED TO BE INCORPORATED IN BITUMINOUS COMPOSITIONS TO IMPROVE THE COATING PROPERTIES THEREOF, SAID COMPOUNDS BEING AMIDES OF N,N-DI(AMINOALKYL-N-ALKYL) AMINES AND SALTS OF SUCH AMIDES, THE AMIDE-FORMING ACIDS BEING ORGANIC ACIDS HAVING FROM 2 TO 20 CARBON ATOMS AND THE SALT-FORMING ACIDS, IF PRESENT, AND AT LEAST ONE OF THE AMIDE-FORMING ACIDS ACIDS HAVING FROM 10 TO 20 CARBON ATOMS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |