US3380950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane lacquers
Assignee: Bayer AG
•
Filing: 1964-04-30
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Granted: 1968-04-30
•
Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Blomeyer Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:15
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/088; C08G18/0885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A STORAGE-STABLE, MOISTURE-CURABLE POLYURETHANE LACQUER HAVING A SUBSTANTIALLY CLEAR LIQUID PHASE COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE, A COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN CONTAINING GROUPS AS DETERMINED BY THE ZEREWITINOFF METHOD, AN ORGANIC SOLVENT FOR THE REACTION PRODUCT AND A WATER BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF AN ALKYL ORTHOFORMATE AND TETRAETHYL ORTHOSILICATE.
Claim 2
Dependent Claim
59 words
A STORAGE-STABLE, MOISTURE-CURABLE POLYURETHANE LACQUER HAVING A SUBSTANTIALLY CLEAR LIQUID PHASE COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE, A COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN CONTAINING GROUPS AS DETERMINED BY THE ZEREWITINOFF METHOD, AN ORGANIC SOLVENT FOR THE REACTION PRODUCT AND A WATER BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF AN ALKYL ORTHOFORMATE AND TETRAETHYL ORTHOSILICATE.
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |