US3458333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking agent for methyl-hydrogen siloxane impregnating compositions
Assignee: Bayer AG
•
Filing: 1967-09-14
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Granted: 1969-07-29
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Karl Schnurrbusch
- 👤 Hans-Horst Steinbach
- 👤 Otto Weiden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:19
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08K5/56; C08K5/57
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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |