US3458553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of aminoalkyl silicon compounds
Assignee: Bayer AG
•
Filing: 1965-03-12
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Granted: 1969-07-29
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Hans Niederprum
- 👤 Elmar-Manfred Horn
- 👤 Walter Simmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:58
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0889; C07C; C07C209/00; C07C209/44; C07C209/48; C07F7/0874; C07F7/18; C07F7/1804; C07F7/1872; C07F7/188; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; F; F28; F28D; F28D3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3026355A
Cited
US2856428A
Cited
US2930809A
Cited
US3112332A
Cited
US3046295A
Cited
US3171851A
Cited
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 |