US3597384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic varnish
Assignee: Czech Academy of Sciences
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Filing: 1968-05-14
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Granted: 1971-08-03
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Expires: 1988-05-14
Abstract
Abstract FILMS WHICH ARE FULLY TRANSPARENT AND PREVENT FOGGING OF WINDOWS AND THE LIKE ARE PREPARED FROM VARNISHES MAINLY CONSISTING OF POLYMERS OF ETHYLENEGLYCOL MONOMETHACRYLATE OR ACRYLATE AND MAY CONTAIN THE CORRESPONDING POLYMERIC ACRYLATES OR METHACRYLATES OF DIETHYLENEGLYCOL OR POLYETHYLENEGLYCOL, TOGETHER WITH MINOR AMOUNTS OF HYDROPHOBIC ACRYLIC RESINS OR NITRCELLULOSE. THE LIQUID MEDIUM OF THE VARNISH SHOULD CONTAIN A SMALL AMOUNT OF A HIGH BOILING SOLVENT AND ENOUGH VOLATILE SOLVENT TO DISSOLVE THE RESINOUS INGREDIENTS.
Inventors
- 👤 Vaclav Kugler
- 👤 Richard Chromecek
- 👤 Karel Kliment
- 👤 Jaroslava Otoupalova
- 👤 Vladimir Stoy
- 👤 Miroslav Stol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/14; C08; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/12; C08L1/16; C08L1/18; C08L2205/00; C08L2205/02; C08L33/00; C08L33/04; C08L33/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |