US3813342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning compositions
Assignee: Individual
•
Filing: 1972-06-20
•
Granted: 1974-05-28
•
Expires: 1992-06-20
Abstract
Abstract A COMPOSITION SUITABLE FOR CLEANING PRINTING EQUIPMENT HAVING ACCUMULATED GUM DEPOSITS COMPRISING AT LEAST ONE ENZYME SELECTED FROM THE GROUP CONSISTING OF DIASTASE, AND ESTERASE, A PENTOSANASE-HEXOSANASE, A PROTEASE OR A CELLULASE AND AN ORGANIC SOLVENT CAPABLE OF DISSOLVING PRINTING INK, SAID COMPOSITION CONTAINING AT LEAST ABOUT 0.1 PERCENT BY WEIGHT OF THE ENZYME.
Inventors
- 👤 I Cooperman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38618; C11D3/38636; C23; C23G; C23G5/00
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |