US3328449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfopropylated, organofunctional silanes and siloxanes
Assignee: Dow Silicones Corp
•
Filing: 1963-12-05
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Granted: 1967-06-27
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Loren A Haluska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1896; C07F7/0803; C07F7/081; C07F7/0834; C07F7/0838; C07F7/1804; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; C08G77/38; C08G77/382; C08G77/392
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOSITION OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOSITION OF THE FORMULA
References Cited (Backward Citations)
US3010849A
Cited
US3109012A
Cited
US3187033A
Cited
US3141898A
Cited
US3063870A
Cited
US3215718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |