US2957804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pesticide
Assignee: Individual
•
Filing: 1958-06-06
•
Granted: 1960-10-25
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harlan R Shuyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:01
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/002; A01N25/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
THE METHOD OF KILLING RODENTS COMPRISING CAUSING SUCH RODENTS TO INGEST A LAMINATED, SELF-SUSTAINING BODY INCLUDING AN INTERNAL NUCLEUS CONTAINING A QUANTITY OF AN ECONOMIC POISON, AN ENTERIC COATING COMPLETELY ENVELOPING THE POISON, A LAYER SURROUNDING SAID ENTERIC COATING AND CONTAINING A PROPORTION TO AN EMETIC AND AN OUTER COATING ENCLOSING SAID LAYER, THE RATIO OF EMETIC TO POISON BEING SUCH THAT THERE IS AT LEAST APPROXIMATELY ONE EFFECTIVE DOSE UNIT OF EMETIC FOR EACH LETHAL DOSE UNIT OF POISON, SAID BODY BEING OF A SIZE TO ALLOW THE RODENT TO GULP THE BODY WITHOUT CHEWING OR FRACTURING SAID LAYER.
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |