Patent US4148164A successfully refreshed from Google Patents.
US3132019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of eliminating weed grasses
Assignee: Eli Lilly and Co
•
Filing: 1961-12-18
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Granted: 1964-05-05
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Quentin F Soper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:56
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/73; C07D213/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF ELIMINATING SEEDLING WEED GRASSES WHICH COMPRISES APPLYING TO AN AREA INFESTED WITH WEED GRASS SEEDS AND SEEDLING WEED GRASSES AN EFFECTIVE AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF A PYRIDINE BASE AND ITS ACID ADDITION SALTS SAID PYRIDINE BASE BEING REPRESENTED BY THE FOLLOWING FORMULA
Claim 2
Independent Claim
50 words
A METHOD OF ELIMINATING SEEDLING WEED GRASSES WHICH COMPRISES APPLYING TO AN AREA INFESTED WITH WEED GRASS SEEDS AND SEEDLING WEED GRASSES AN EFFECTIVE AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF A PYRIDINE BASE AND ITS ACID ADDITION SALTS SAID PYRIDINE BASE BEING REPRESENTED BY THE FOLLOWING FORMULA
References Cited (Backward Citations)
US2394916A
Cited
AT198997B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |