US2642351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of aquatic plants
Assignee: Dow Chemical Co
•
Filing: 1949-10-15
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Granted: 1953-06-16
•
Expires: 1969-10-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Swezey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:22
CPC Classifications
A; A01; A01N; A01N35/00; A01N35/08; A01N27/00; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A METHOD FOR CONTROLLING AQUATIC PLANTS WHICH INCLUDES TO STEP OF INTRODUCING INTO THE WATER ADJACENT TO THE SUBMERSED PORTIONS OF THE PLANTS A WATER-DISPERSIBLE CONCENTRATE COMPRISING AS A TOXIC INGREDIENT THE DELTA ISOMER OF 1,2,3,4,5,6-HEXACHLOROCYCLOHEXANE.
Claim 2
Independent Claim
36 words
A METHOD FOR CONTROLLING AQUATIC PLANTS WHICH INCLUDES TO STEP OF INTRODUCING INTO THE WATER ADJACENT TO THE SUBMERSED PORTIONS OF THE PLANTS A WATER-DISPERSIBLE CONCENTRATE COMPRISING AS A TOXIC INGREDIENT THE DELTA ISOMER OF 1,2,3,4,5,6-HEXACHLOROCYCLOHEXANE.
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |