Patent US3209053A successfully refreshed from Google Patents.
US3209053A
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Organosilicon cyclic urea derivatives and coatings thereof
Assignee: Dow Silicones Corp
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Filing: 1962-06-04
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Granted: 1965-09-28
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Expires: 1982-06-04
Abstract
No abstract record available.
Inventors
- 👤 John W Gilkey
- 👤 Robert H Krahnke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:43
CPC Classifications
C; C08; C08G; C08G77/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; C07F7/0825; C07F7/083; C07F7/0834; C07F7/0838; C07F7/18; C07F7/1804; C07F7/1896; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/218
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
5 words
A COMPOSITION OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOSITION OF THE FORMULA
Claim 3
Dependent Claim
17 words
A COPOLYMER CONSISTING OF FROM 2 TO 50 PERCENT BY WEIGHT OF SILOXANE OF THE UNIT FORMULA
Claim 4
Dependent Claim
17 words
A COPOLYMER CONSISTING OF FROM 2 TO 50 PERCENT BY WEIGHT OF SILOXANE OF THE UNIT FORMULA
Claim 5
Dependent Claim
36 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF (1) FROM 2.5 TO 75 PERCENT BY WEIGHT OF A SILOXANE CONSISTING ESSENTIALLY OF (A) A COPOLYMER FROM 2 TO 50 PERCENT BY WEIGHT SILOXANE UNITS OF THE FORMULA
Claim 6
Dependent Claim
36 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF (1) FROM 2.5 TO 75 PERCENT BY WEIGHT OF A SILOXANE CONSISTING ESSENTIALLY OF (A) A COPOLYMER FROM 2 TO 50 PERCENT BY WEIGHT SILOXANE UNITS OF THE FORMULA
References Cited (Backward Citations)
US2906756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |