US3510416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dry chlorination of polyvinyl chloride in the presence of gaseous hydrogen
Assignee: Manifattura Ceramica Pozzi SpA
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Filing: 1969-07-16
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Granted: 1970-05-05
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Expires: 1989-07-16
Abstract
No abstract record available.
Inventors
- 👤 Pietro Vaccari
- 👤 Attilio Palvarini
- 👤 Mario De Vita
- 👤 Pietro Pece
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:11
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20
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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |