Patent US3203969A successfully refreshed from Google Patents.
US3203969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino silicone-silicate polymers
Assignee: Union Carbide Corp
•
Filing: 1961-04-06
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Granted: 1965-08-31
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Expires: 1981-04-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Pines
- 👤 Eugene A Zientek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:12
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AN ORGANOSILICON POLYMER THAT CONSISTS ESSENTIALLY OF: (A) FROM 10 TO 90 PARTS BY WEIGHT OF SILOXANE GROUPS REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
22 words
AN ORGANOSILICON POLYMER THAT CONSISTS ESSENTIALLY OF: (A) FROM 10 TO 90 PARTS BY WEIGHT OF SILOXANE GROUPS REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
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US2762823A
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US2832754A
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US3044982A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |