US3297591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of alpha-perfluoro-p-xylylene poluymers
Assignee: Union Carbide Corp
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Filing: 1964-07-09
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Granted: 1967-01-10
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Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Chow Sui-Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; C07; C07C; C07C17/00; C07C17/093; C07C17/18; C07C315/00; C07C315/02; C07C319/00; C07C319/14; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
PROCESS FOR THE PREPARATION OF A-PERFLUORO-PXYLYLENE POLYMERS WHICH COMPRISES PYROLYZING A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
16 words
PROCESS FOR THE PREPARATION OF A-PERFLUORO-PXYLYLENE POLYMERS WHICH COMPRISES PYROLYZING A COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
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US2769786A
Cited
US2999820A
Cited
US3021358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |