Patent US2830869A successfully refreshed from Google Patents.
US2830869A
Expired / Lapsed
US
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Method of eliminating odors in kraft pulp mill operation
Assignee: Individual
•
Filing: 1954-12-08
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Granted: 1958-04-15
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Expires: 1974-12-08
Abstract
No abstract record available.
Inventors
- 👤 Limerick Jack Mck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:20
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/06; D21C11/08; Y; Y02; Y02P; Y02P40/00; Y02P40/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN THE OPERATION OF KRAFT PULP MILL, THE STEPS OF CONDUCTING OZONE TO A LINE DISCHARGING ODOROUS STACK GASES, MIXING THE OZONE WITH SUCH GASES IN A PRODUCTION FROM ABOUT 10 TO ABOUT 100 PARTS PER MILLION OF THE TOTAL GAS VOLUME, RETAINING SAID OZONE AN SAID GASES IN INTIMATE MIXTURE FOR NOT LESS THAN ABOUT 2 SECONDS AND THEREAFTER DISCHARGING SAID MIXTURE TO THE ATMOSPHERE.
Claim 2
Dependent Claim
66 words
IN THE OPERATION OF KRAFT PULP MILL, THE STEPS OF CONDUCTING OZONE TO A LINE DISCHARGING ODOROUS STACK GASES, MIXING THE OZONE WITH SUCH GASES IN A PRODUCTION FROM ABOUT 10 TO ABOUT 100 PARTS PER MILLION OF THE TOTAL GAS VOLUME, RETAINING SAID OZONE AN SAID GASES IN INTIMATE MIXTURE FOR NOT LESS THAN ABOUT 2 SECONDS AND THEREAFTER DISCHARGING SAID MIXTURE TO THE ATMOSPHERE.
References Cited (Backward Citations)
US1574617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |