US2860140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of 2-methyl-5-vinylpyridine
Assignee: Phillips Petroleum Co
•
Filing: 1953-06-15
•
Granted: 1958-11-11
•
Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Clyde W Mertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C08; C08F; C08F2/00; C08F2/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COMPOSITION CONTAINING 2-METHYL-5-VINYLPYRIDINE STABILIZED AGAINST PROLIFEROUS POLYMER FORMATION HAVING INCORPORATED THEREIN 0.01-5 WEIGHT PERCENT BASED ON SAID COMPOUND OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AZOBENZENE, PHENYLHYDRAZINE, PHENYLHYDRAZINE HYDROCHLORIDE, BUTYRYLHYDRAZINE, AND AZOXYBENZENE.
Claim 2
Dependent Claim
37 words
A COMPOSITION CONTAINING 2-METHYL-5-VINYLPYRIDINE STABILIZED AGAINST PROLIFEROUS POLYMER FORMATION HAVING INCORPORATED THEREIN 0.01-5 WEIGHT PERCENT BASED ON SAID COMPOUND OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AZOBENZENE, PHENYLHYDRAZINE, PHENYLHYDRAZINE HYDROCHLORIDE, BUTYRYLHYDRAZINE, AND AZOXYBENZENE.
References Cited (Backward Citations)
US2570269A
Cited
US2600457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |