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Patent US3417066A successfully refreshed from Google Patents.
US3417066A
Expired / Lapsed
US
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Process for chloromethylating and crosslinking high molecular weight aromatic compounds
Assignee: Bayer AG
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Filing: 1965-02-24
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Granted: 1968-12-17
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Expires: 1985-02-24
Abstract
No abstract record available.
Inventors
- 👤 Corte Herbert
- 👤 Netz Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:23
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/13; B01J41/14; C08F; C08F8/00; C08F8/18; C08F8/24
Claims Analysis
Total Claims: 0
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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) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |