US3433780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colloidal silsesquioxanes and methods for making same
Assignee: Dow Silicones Corp
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Filing: 1967-01-25
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Granted: 1969-03-18
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Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph Cekada Jr
- 👤 Donald R Weyenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:19
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/65; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08L; C08L83/00; C08L83/04; C08G77/14; C08G77/16; C08G77/22; C08G77/24; C08G77/26; C08G77/28; C08G77/70; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23921; Y10T428/25; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2033; Y10T442/2279; Y10T442/2344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2840087A
Cited
US2891920A
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US3228903A
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US3208911A
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US3294725A
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US3360491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |