US3442837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent polyvinyl chloride containing high density polyethylene as a lubricant
Assignee: Hoechst AG
•
Filing: 1965-12-01
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Granted: 1969-05-06
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Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Walter Brotz
- 👤 Dietrich Runge
- 👤 Manfred Karl Furchteg Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:18
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/10; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L91/00; C08L91/06; C08L23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2897176A
Cited
US3085082A
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US3143431A
Cited
US3075946A
Cited
US3125545A
Cited
US3046237A
Cited
US3309426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |