Patent US3454673A successfully refreshed from Google Patents.
US3454673A
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US
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Preparation of hardenable nitrogen containing synthetic resinous products
Assignee: Beck & Co Dr GmbH
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Filing: 1966-06-01
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Granted: 1969-07-08
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Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Karl Schmidt
- 👤 Hans Dannenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:05
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6858; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/285; C08G18/67; C08G18/68; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/425
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |