Patent US2826569A successfully refreshed from Google Patents.
US2826569A
Expired / Lapsed
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Resinous compositions containing butadiene-1, 3 and polyalkylpyridines and process of preparing them
Assignee: Reilly Tar and Chemical Corp
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Filing: 1954-09-07
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Granted: 1958-03-11
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Expires: 1974-09-07
Abstract
No abstract record available.
Inventors
- 👤 Francis E Cislak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:03
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
THE PROCESS OF MAKING A RESINOUS COMPOSITION WHICH COMPRISES REACTING A CONJUGATED BUTADIENE WITH A PYRIDINE COMPOUND OF THE CLASS CONSISTING OF 2,6-LUTIDINE, 2,4,6COLLIDINE, AND 2,4-LUTIDINE.
Claim 2
Dependent Claim
26 words
THE PROCESS OF MAKING A RESINOUS COMPOSITION WHICH COMPRISES REACTING A CONJUGATED BUTADIENE WITH A PYRIDINE COMPOUND OF THE CLASS CONSISTING OF 2,6-LUTIDINE, 2,4,6COLLIDINE, AND 2,4-LUTIDINE.
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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |