US3530159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon polymers containing oxyalkylene residues
Assignee: Rhone Poulenc SA
•
Filing: 1965-07-15
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Granted: 1970-09-22
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul Alfred Eugene Guinet
- 👤 Jean Marius Ernest Morel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:23
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876; C07F7/0878; C07F7/0879; C08G; C08G77/00; C08G77/42; C08G77/46; C08J2483/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3172899A
Cited
US3402192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |