Patent US3645773A successfully refreshed from Google Patents.
US3645773A
Expired / Lapsed
US
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Process for coating substrates in strip-form with photographic emulsion
Assignee: Agfa Gevaert AG
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Filing: 1969-02-10
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Granted: 1972-02-29
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Expires: 1989-02-10
Abstract
Abstract A process for coating a viscous solution by a wetting process on a movable substrate. The coating solution is formed by a narrow gap between coating apparatus and the movable substrate so that the narrow gap is part of a coating chamber of the coating apparatus. The coating chamber is connected to a vacuum means at the side of the coating apparatus from which the substrate is introduced.
Inventors
- 👤 Peter Herzhoff
- 👤 Hans Gref
- 👤 Wolfgang Schweicher
- 👤 Willi Wasser
- 👤 Kurt Browatski
- 👤 Josef Friedsam
- 👤 Fritz Maus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:09
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/74; B; B05; B05D; B05D1/00; B05D1/26; B05D2401/00; B05D2401/20; B05D2451/00; B05D3/00; B05D3/04; B05D3/0493; B05D7/00; B05D7/50; B05D7/52; B05D7/53; B05D7/538; B05D7/5383; B05D7/5385; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A process for coating several layers according to claim 1, wherein the different layers are applied successively via a plurality of self-communicating pipe systems, each system having its free adjustable coating solution level in a different supply vessel, the supply vessels being provided with an air cushion, and metering each coating solution to each supply vessel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |