US3468322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dissolving solids in solvents
Assignee: Dow Chemical Co
•
Filing: 1967-07-24
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Granted: 1969-09-23
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Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Katzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:42
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; B; B01; B01F; B01F21/00; B01F21/20; B01F23/00; B01F23/40; B01F23/45; B01F23/451; B01F23/50; B01F23/56; B01F25/00; B01F25/30; B01F25/31; B01F33/00; B01F33/80; B01F33/82; B01F33/821; B01F33/834; B01F2025/91; B01F2025/916; C08J2300/00; C08J2300/10; Y; Y10; Y10S; Y10S422/00; Y10S422/901; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329
Claims Analysis
Total Claims: 0
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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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |