US3494870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Less than fully alkylated hydroxy alkyl ethylene diamine as a cleaning composition,and for method of cleaning and sequestering metal ions
Assignee: Progressive Products Corp
•
Filing: 1968-07-15
•
Granted: 1970-02-10
•
Expires: 1988-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul W Kersnar
- 👤 Samuel Taormina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04; C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D9/00; C11D9/02; C11D9/04; C11D9/22; C11D9/30; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |