US2866722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of foamed urethan coatings
Assignee: Bayer AG
•
Filing: 1955-05-20
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Granted: 1958-12-30
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Gensel Herbert
- 👤 Tischbein Wilhelm
- 👤 Windemuth Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:57
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR PRODUCING FOAMED PLASTIC COATINGS ON A SUBSTRATE, WHICH COMPRISES INITIALLY APPLYING TO SAID SUBSTRATE A COMPOSITION COMPRISING A POLYESTER CONTAINING HYDROXYL GROUPS, AN ACCELERATOR AND WATER SAID EFFECTING A FOAMING REACTION WITH SAID COMPOSITION BY SPRAYING ONTO SAID COMPOSITION A POLYISOCYANATE.
Claim 2
Dependent Claim
44 words
A PROCESS FOR PRODUCING FOAMED PLASTIC COATINGS ON A SUBSTRATE, WHICH COMPRISES INITIALLY APPLYING TO SAID SUBSTRATE A COMPOSITION COMPRISING A POLYESTER CONTAINING HYDROXYL GROUPS, AN ACCELERATOR AND WATER SAID EFFECTING A FOAMING REACTION WITH SAID COMPOSITION BY SPRAYING ONTO SAID COMPOSITION A POLYISOCYANATE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |