US2695840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and compositions for killing
Assignee: —
•
Filing: —
•
Granted: 1954-11-30
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/18; A; A01; A01N; A01N25/00; A01N25/12; A01N25/14; A01N37/00; A01N37/36; A01N37/38; A01N37/40; A01N39/00; A01N39/02; A01N39/04; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION FOR KILLING GROWING WEEDS COMPRISING ESSENTIALLY A SUBSTANTIALLY DRY PUMICE AGGREGATE IMPREGNATED WITH HERBICDAL AGENT, SAID AGGREGATE HAVING A PARTICLE SIZE WITHIN THE RANGE OF -1/4 INCH TO +50 MESH AND A WATER ABSORPTION FACTOR, DRY BASIS, OF AT LEAST 25 PER CENT BY WEIGHT, SAID AGGREGATE BEING RESISTANT TO ABRASION, CRUSHING, AND TO SLACKING WHEN WET BY WATER.
Claim 2
Dependent Claim
61 words
A COMPOSITION FOR KILLING GROWING WEEDS COMPRISING ESSENTIALLY A SUBSTANTIALLY DRY PUMICE AGGREGATE IMPREGNATED WITH HERBICDAL AGENT, SAID AGGREGATE HAVING A PARTICLE SIZE WITHIN THE RANGE OF -1/4 INCH TO +50 MESH AND A WATER ABSORPTION FACTOR, DRY BASIS, OF AT LEAST 25 PER CENT BY WEIGHT, SAID AGGREGATE BEING RESISTANT TO ABRASION, CRUSHING, AND TO SLACKING WHEN WET BY WATER.
References Cited (Backward Citations)
US2604428A
Cited
US2523228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |