US2678265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed control
Assignee: Vineland Chemical Co
•
Filing: 1951-07-05
•
Granted: 1954-05-11
•
Expires: 1971-07-05
Abstract
No abstract record available.
Inventors
- 👤 Schwerdle Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:33
CPC Classifications
A; A01; A01N; A01N55/00; A01N55/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
THE METHOD OF SELECTIVELY CONTROLLING THE GROWTH OF CRABGRASS WHICH COMPRISES APPLYING TO AN AREA CONTAINING CRABGRASS A COMPOSITION COMPRISING A MIXTURE OF AT LEAST ONE ARSENIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ARSONIC ACIDS HAVING THE FORMULA:
Claim 2
Independent Claim
39 words
THE METHOD OF SELECTIVELY CONTROLLING THE GROWTH OF CRABGRASS WHICH COMPRISES APPLYING TO AN AREA CONTAINING CRABGRASS A COMPOSITION COMPRISING A MIXTURE OF AT LEAST ONE ARSENIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ARSONIC ACIDS HAVING THE FORMULA:
References Cited (Backward Citations)
US1686582A
Cited
US2160929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |