US3440302A
Expired / Lapsed
US
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Room temperature curable copolymers of unsaturated organic polymers and mercaptosilanes
Assignee: Dow Silicones Corp
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Filing: 1965-03-22
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Granted: 1969-04-22
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 John L Speier
- 👤 Joseph W Keil
- 👤 William G Gowdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/548; C08G; C08G63/00; C08G63/68; C08G63/695; C08G63/6954; C08G63/91; C08G63/914; C08G63/918; C08J; C08J3/00; C08J3/24; C08L; C08L83/00; C08L83/04; C08G77/00; C08G77/04; C08G77/20; C08G77/42; C08G77/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |