US3080264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing silt from tanks
Assignee: ZIMMIE
•
Filing: 1960-02-12
•
Granted: 1963-03-05
•
Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
- 👤 William E Zimmie
- 👤 Frederick W Bloecher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
B; B63; B63B; B63B57/00; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B08B9/0933; C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C02F5/00; C02F5/08; C02F5/10; C02F5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF REMOVING ACCUMULATIONS OF SILT AND MUD FROM TANKS WHICH COMPRISES ADDING TO THE TANKS AN EFFECTIVE PROPORTION OF A WATER SOLUBLE POLYELECTROLYTIC ORGANIC POLYMER AND WATER; MIXING SAID WATER AND ORGANIC POLYMER WITH THE SILT AND MUD TO FORM A FLOCCULENT MIXTURE, AND THEN REMOVING THE MIXTURE.
Claim 2
Independent Claim
50 words
A METHOD OF REMOVING ACCUMULATIONS OF SILT AND MUD FROM TANKS WHICH COMPRISES ADDING TO THE TANKS AN EFFECTIVE PROPORTION OF A WATER SOLUBLE POLYELECTROLYTIC ORGANIC POLYMER AND WATER; MIXING SAID WATER AND ORGANIC POLYMER WITH THE SILT AND MUD TO FORM A FLOCCULENT MIXTURE, AND THEN REMOVING THE MIXTURE.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |