US3337512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product and process for preparing poly(2, 6-xylylsulfonates)
Assignee: General Electric Co
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Filing: 1965-02-01
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Granted: 1967-08-22
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Walter L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:12
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/24; C07; C07C; C07C309/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
AN ESSENTIALLY LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLY(2,6-XYLYL-3-SULFONATE), HAVING THE STRUTURAL FORMULA
Claim 2
Dependent Claim
15 words
AN ESSENTIALLY LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLY(2,6-XYLYL-3-SULFONATE), HAVING THE STRUTURAL FORMULA
References Cited (Backward Citations)
GB830822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |