US3536675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerizing vinyl chloride in suspension
Assignee: Produits Chimiques Pechiney Saint Gobain
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Filing: 1967-04-17
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Granted: 1970-10-27
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Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Yves J Fagnoni
- 👤 Francois M Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:37
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/341; B27; B27F; B27F1/00; B27F1/08; B27F1/12
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |