US3399124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic preparation of poly-p-xlylenes
Assignee: Union Carbide Corp
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Filing: 1964-09-17
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Granted: 1968-08-27
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Expires: 1984-09-17
Abstract
No abstract record available.
Inventors
- 👤 Heinrich G Gilch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:24
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AN ELECTROLYTIC PROCESS FOR THE PREPARATION OF POLYP-XYLYLENES HAVING THE GENERAL STRUCTURE
Claim 2
Dependent Claim
12 words
AN ELECTROLYTIC PROCESS FOR THE PREPARATION OF POLYP-XYLYLENES HAVING THE GENERAL STRUCTURE
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |