US3548027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coatings based on acrylic copolymers and aminoplasts
Assignee: Huels AG
•
Filing: 1967-12-08
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Granted: 1970-12-15
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Expires: 1987-12-08
Abstract
No abstract record available.
Inventors
- 👤 Karl-Heinz Hornung
- 👤 Ernst-Christian Schutze
- 👤 Rudolf Nehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/10; C08F22/12; C08F22/20; C09; C09D; C09D135/00; C09D135/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31688; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2787630A
Cited
US3227680A
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US3248416A
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US3245963A
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US3449467A
Cited
US3457324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |