US2968643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfo-aralkylsiloxanes and salts thereof
Assignee: Union Carbide Corp
•
Filing: 1958-12-31
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Granted: 1961-01-17
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Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:08
CPC Classifications
C; C08; C08F; C08F10/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
AS A NEW COMPOSITION OF MATTER AN ORGANO-FUNCTIONAL ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE UNIT OF THE FORMULA:
Claim 2
Dependent Claim
18 words
AS A NEW COMPOSITION OF MATTER AN ORGANO-FUNCTIONAL ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE UNIT OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |