US2836571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of p-methyl benzyl chloride polymers by pyrolysis
Assignee: EIDP Inc
•
Filing: 1956-01-10
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Granted: 1958-05-27
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Expires: 1976-01-10
Abstract
No abstract record available.
Inventors
- 👤 Luther A R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:18
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PROCESS FOR THE PREPARATION OF A POLYMER HAVING RECURRING UNITS OF THE STRUCTURE:
Claim 2
Dependent Claim
14 words
A PROCESS FOR THE PREPARATION OF A POLYMER HAVING RECURRING UNITS OF THE STRUCTURE:
References Cited (Backward Citations)
US2719131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |