Patent US2677938A successfully refreshed from Google Patents.
US2719783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low volatile compositions for controlling vegetation growth
Assignee: California Spray Chemical Corp
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Filing: 1951-04-14
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Granted: 1955-10-04
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Expires: 1971-04-14
Abstract
No abstract record available.
Inventors
- 👤 Gustave K Kohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:22
CPC Classifications
A; A01; A01N; A01N43/00; A01N43/02; A01N43/04; A01N43/06; A01N43/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A HERBICIDAL COMPOSITION COMPRISING AN INERT CARRIER AND THE TETRAHYDROFUFURYL ESTER OF 2,4-DICHLOROPHENOXYACETIC ACID, SAID ESTER BEING PRESENT IN THE COMPOSITION IN PHYTOCIDAL CONCENTRATION.
References Cited (Backward Citations)
US2390941A
Cited
US2543397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |