US2593529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rosin amine algaecides
Assignee: Hercules Powder Co
•
Filing: 1950-05-31
•
Granted: 1952-04-22
•
Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph N Borglin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C02F3/00; C02F3/32; C02F3/322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE METHOD OF INHIBITING GROWTH OF ALGAE IN WATER IN A WATER-CARRYING SYSTEM WHICH COMPRISES DEPOSITING ON THE WALLS OF THE SYSTEM NORMALLY COVERED BY WATER AND ON WHICH ALGAE NORMALLY GROW A ROSIN AMINE IN AN AMOUNT SUFFICIENT TO KILL ALGAE, IF PRESENT.
Claim 2
Independent Claim
44 words
THE METHOD OF INHIBITING GROWTH OF ALGAE IN WATER IN A WATER-CARRYING SYSTEM WHICH COMPRISES DEPOSITING ON THE WALLS OF THE SYSTEM NORMALLY COVERED BY WATER AND ON WHICH ALGAE NORMALLY GROW A ROSIN AMINE IN AN AMOUNT SUFFICIENT TO KILL ALGAE, IF PRESENT.
References Cited (Backward Citations)
US2400863A
Cited
US2490925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |