US3373138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making siloxane polymers from silanes
Assignee: Dow Silicones Corp
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Filing: 1965-12-30
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Granted: 1968-03-12
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Eric D Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:58
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C07F7/21; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/22; C08G77/24; C08G77/48; C08G77/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2587636A
Cited
GB687542A
Cited
US3011987A
Cited
US2915544A
Cited
US3160601A
Cited
US3135713A
Cited
US3208972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |