US4016305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum deposition method
Assignee: Fujikura Kasei Co Ltd
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Filing: 1975-08-12
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Granted: 1977-04-05
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Expires: 1995-08-12
Abstract
Abstract A method for vacuum deposition which comprises coating on the surface of a substrate to be metallized an undercoating composition comprising a hydroxyl-containing vinyl polymer havng a hydroxyl number of 20 to 200 and 1.1 to 5.0 equivalents, per equivalent of the hydroxyl group in the vinyl polymer, of a polyisocyanate as a film-forming component, curing the coated film, and depositing a metal or its compound, especially highly anticorrosive metal or its compound, on the undercoat in vacuum.
Inventors
- 👤 Yukimasa Wakabayashi
- 👤 Shigeru Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/02; C23C14/024; B; B05; B05D; B05D5/00; B05D5/06; B05D5/067; B05D5/068; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C23C14/06; C23C14/14; C23C14/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3677792A
Cited
US3740254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |