US3784477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paint removal compositions
Assignee: Individual
•
Filing: 1971-08-13
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Granted: 1974-01-08
•
Expires: 1991-08-13
Abstract
Abstract PAINT AND OTHER FINISHES CAN BE READILY AND SAFELY REMOVED FROM EVEN THE MOST DELICATE PIECES OF FURNITURE BY USING A MIXTURE OF (1) XYLOL OR AROMATIC NAPHTHAS WITH (B) AT LEAST 5 PARTS PER HUNDRED OF EITHER DIMETHYLFORMAMIDE, DIMETHYLACETAMIDE, OR MIXTURES THEREOF. A PREFERRED MIXTURE IS THAT OF APPORXIMATELY 20% DIMETHYLFORMAMIDE WITH APPROXIMATELY 80% OF XYLOL TO FORM AN AZOTROPIC MIXTURE. THE OBJECT IS IMMERSED OR SPRYAYED IN A TANK WITH THE MIXTURE WHICH IS ALLOWED TO REMAIN ON THE SURFACE UNTIL IT IS SOFTENED. THEN THE SWOLLEN FINISH IS REMOVED BY WASHING WITH FRESH MIXTURE AND AIR-DRIED.
Inventors
- 👤 R Esposito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:33
CPC Classifications
C; C09; C09D; C09D9/00; C09D9/005
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |