US3445389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone lubricant
Assignee: Dow Silicones Corp
•
Filing: 1965-03-29
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Granted: 1969-05-20
•
Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mckellar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:06
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/48; C08G77/50; C10; C10M; C10M3/00; C10M7/00; D06M7/00; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/46; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10; C10N2070/00; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |