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Patent US3368874A successfully refreshed from Google Patents.
US3368874A
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Apparatus for the continuous polymerization of monomeric synthetics
Assignee: VEB CHEMIEFASERWERK SCHWARZA WILHELM PIECK
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Filing: 1964-09-25
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Granted: 1968-02-13
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Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Ludewig Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:06
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; Y; Y10; Y10S; Y10S159/00; Y10S159/01; Y10S159/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2776284A
Cited
US3044993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |