US3810786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning (degreasing) web material
Assignee: Nyby Bruk AB
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Filing: 1971-04-16
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Granted: 1974-05-14
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Expires: 1991-04-16
Abstract
Abstract IN DEGREASING STEEL ARTICLES AN IMPROVEMENT IN OVERALL COST AND IN CONVENIENCE IS REALIZED BY DISPLACING OILY SUB: STANCES FROM THE STEEL BY THE USE OF DETERGENTS HAVING A HYDROPHOBIC BALANCE OF 10 AND ABOVE, RESULTING IN THE FORMATION OF A LABILE EMULSION.
Inventors
- 👤 B Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:57
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/24; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0269; B21B45/0275; B21B45/0278; B21B45/0284; C23G3/00; C23G3/02; C23G3/023
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |