US3522218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinkable addition products prepared by reacting a monoisocyanate with an organic compound containing hydrogen atoms reactive with nco groups
Assignee: Bayer AG
•
Filing: 1967-12-01
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Granted: 1970-07-28
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Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 Josef Pedain
- 👤 Karl-Friedrich Zenner
- 👤 Gunter Oertel
- 👤 Hans Holtschmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/714
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2801990A
Cited
US2797232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |