US3282725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent removal from a coated lacquer film
Assignee: Akzo NV
•
Filing: 1963-05-16
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Granted: 1966-11-01
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Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Roelof Van Zalinge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:38
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/04; B05D3/0406; B05D3/0413; B05D7/00; B05D7/02; B05D7/04; B05D1/00; B05D1/18; B05D2201/00; B05D2401/00; B05D2401/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE CONTINUOUS METHOD FOR THE COATING OF A FILM WHEREIN THE FILM IS GUIDED THROUGH A BATH CONSISTING OF A LACQUER SOLUTION AND SUBSEQUENTLY DRIED IN A DRYING SHAFT BY CONTACT WITH HEATED CIRCULATING AIR, AND WHICH FILM AFTER IT HAS LEFT THE LACQUER BATH AND BEFORE CONTACT WITH THE HEATED AIR IS GUIDED THROUGH AN INTERMEDIATE ZONE IN WHICH EXCESSIVE VENTILATION IS AVOIDED AND IN WHICH AN ATMOSPHERE IS MAINTAINED CONTAINING SOLVENT VAPOR IN A CONCENRATION HIGHER THAN THAT MAINTAINED IN THE DRYING SHAFT, THE IMPROVEMENT COMPRISING MAINTAINING THE ATMOSPHERE IN SAID ZONE AT AN ADJUSTABLE TEMPERATURE WHICH IS HIGHER THAN THAT OF THE LACQUER BATH AND LOWER THAN THAT OF THE HEATED DRYING AIR.
Claim 2
Dependent Claim
117 words
IN THE CONTINUOUS METHOD FOR THE COATING OF A FILM WHEREIN THE FILM IS GUIDED THROUGH A BATH CONSISTING OF A LACQUER SOLUTION AND SUBSEQUENTLY DRIED IN A DRYING SHAFT BY CONTACT WITH HEATED CIRCULATING AIR, AND WHICH FILM AFTER IT HAS LEFT THE LACQUER BATH AND BEFORE CONTACT WITH THE HEATED AIR IS GUIDED THROUGH AN INTERMEDIATE ZONE IN WHICH EXCESSIVE VENTILATION IS AVOIDED AND IN WHICH AN ATMOSPHERE IS MAINTAINED CONTAINING SOLVENT VAPOR IN A CONCENRATION HIGHER THAN THAT MAINTAINED IN THE DRYING SHAFT, THE IMPROVEMENT COMPRISING MAINTAINING THE ATMOSPHERE IN SAID ZONE AT AN ADJUSTABLE TEMPERATURE WHICH IS HIGHER THAN THAT OF THE LACQUER BATH AND LOWER THAN THAT OF THE HEATED DRYING AIR.
References Cited (Backward Citations)
US1662816A
Cited
US1920212A
Cited
US1930601A
Cited
US2159297A
Cited
US3049446A
Cited
US3097106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |