Patent US3519459A successfully refreshed from Google Patents.
US3519459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing finely porous coatings
Assignee: BASF Schweiz AG
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Filing: 1965-08-31
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Granted: 1970-07-07
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Expires: 1985-08-31
Abstract
No abstract record available.
Inventors
- 👤 Peter Hofmann
- 👤 Christian Guth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:06
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0056; D06N3/0063; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; D06M23/00; D06M23/04; D06N3/0043; D06N3/0052; D06N3/0061; D06N3/04; D06N3/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2722869A
Cited
US2772322A
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US3185582A
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US2837440A
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US3220869A
Cited
US3084073A
Cited
US3268458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |