US3497456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning composition
Assignee: Stepan Co
•
Filing: 1967-02-23
•
Granted: 1970-02-24
•
Expires: 1987-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert N Goodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:17
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146; C11D1/04; C11D1/10; C11D1/88; C11D3/00; C11D3/0005; C11D3/0031; C11D3/43; D; D06; D06L; D06L1/00; D06L1/02; D06L1/04; C11D1/126; C11D1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3091508A
Cited
GB1027154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |