US3197431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel organosilicon compounds
Assignee: Union Carbide Corp
•
Filing: 1960-07-25
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Granted: 1965-07-27
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 William M Lanham
- 👤 Percy L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:06
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2454; C08G77/04; C08G77/38; C08G77/382; C08G77/395; C08G77/48; C08G77/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A SILOXANE COMPRISING POLYMERIC UNITS REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
9 words
A SILOXANE COMPRISING POLYMERIC UNITS REPRESENTED BY THE FORMULA:
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |