US3489782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing organosiloxanes
Assignee: IND DES SILICONES SOC
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Filing: 1969-02-26
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Granted: 1970-01-13
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Expires: 1989-02-26
Abstract
No abstract record available.
Inventors
- 👤 Pierre A Pruvost
- 👤 Michel L Bourbon
- 👤 Michel Vialle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/42; C08G77/44
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |