US3745207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of waste pickle liquor
Assignee: TPTYG Inc
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Filing: 1971-01-25
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Granted: 1973-07-10
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Expires: 1991-01-25
Abstract
Abstract WASTE ACID PICKLE LIQUOR IS CONVERTED INTO IRON OXIDE AND ACID BY DEPOSITING IT ON A COMPACT MOVING BED AND SWEEPING THE BED WITH HOT OXIDIZING GASES.
Inventors
- 👤 L Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:59
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/725; B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01J8/16; C01; C01G; C01G49/00; C01G49/02; C01G49/06; C02F1/02; C02F1/04; C02F1/048; C02F1/10; Y; Y10; Y10S; Y10S423/00; Y10S423/01; Y10S423/02
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |