Patent US1530864A successfully refreshed from Google Patents.
US3166398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-emergence control of plant growth
Assignee: Wyeth Holdings LLC
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Filing: 1962-05-31
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Granted: 1965-01-19
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Bryant L Walworth
- 👤 Albert W Lutz
- 👤 Wood Kathryn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:15
CPC Classifications
A; A01; A01N; A01N43/00; A01N43/02; A01N43/04; A01N43/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METHOD FOR THE CONTROL OF UNDESIRABLE PLANT GROWTH WHICH COMPRISES: APPLYING TO AN AREA TO BE PROTECTED FROM SUCH GROWTH A BIS-EPOXY COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Independent Claim
28 words
A METHOD FOR THE CONTROL OF UNDESIRABLE PLANT GROWTH WHICH COMPRISES: APPLYING TO AN AREA TO BE PROTECTED FROM SUCH GROWTH A BIS-EPOXY COMPOUND REPRESENTED BY THE FORMULA:
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |