US2745781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parasiticide composition and method
Assignee: Dow Chemical Co
•
Filing: 1951-07-06
•
Granted: 1956-05-15
•
Expires: 1971-07-06
Abstract
No abstract record available.
Inventors
- 👤 Stewart Doane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:42
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04; A01N25/06; A01N2300/00; C; C07; C07C; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
AN AQUEOUS SPRAY COMPOSITION HAVING DISPERSED
Claim 2
Dependent Claim
6 words
AN AQUEOUS SPRAY COMPOSITION HAVING DISPERSED
Claim 3
Dependent Claim
98 words
IN WIPING AND SEALING DEVICES FOR WELL PIPES, A PIPEBUTYL-PHENOL AND METHYLCELLULOSE, THE LATTER BEING IN SUCH ENGAGING ELEMENT, COMPRISING, A GENERALLY ANNULAR BODY PROPORTION AS TO EXERT AN ENERGISING ACTION UPON THE AMINE CONSTRUCTED OF FLEXIBLE RESILIENT MATERIAL HAVING AN AXIAL SALT COMPOUND AS REGARDS PARASITICIDAL AND RESIDUAL ACBORE THERETHROUGH, SAID BORE HAVING AN INITIAL PRE-FORMED TIVITY. DIAMETER SOMEWHAT GREATER THAN THAT OF A PIPE TO BE EXTENDED THERETHROUGH, AND AN ANNULAR FLEXIBLE RESILIENT MEMBER CIRCUMFERENTIALLY MOUNTED ABOUT THE EXTERIOR OF SAID BODY AND ADAPTED TO RESILIENTLY CONSTRICT SAID BODY CIRCUMFERENTIALLY INTO COMPRESSIVE ENGAGEMENT WITH SAID PIPE.
Claim 4
Dependent Claim
98 words
IN WIPING AND SEALING DEVICES FOR WELL PIPES, A PIPEBUTYL-PHENOL AND METHYLCELLULOSE, THE LATTER BEING IN SUCH ENGAGING ELEMENT, COMPRISING, A GENERALLY ANNULAR BODY PROPORTION AS TO EXERT AN ENERGISING ACTION UPON THE AMINE CONSTRUCTED OF FLEXIBLE RESILIENT MATERIAL HAVING AN AXIAL SALT COMPOUND AS REGARDS PARASITICIDAL AND RESIDUAL ACBORE THERETHROUGH, SAID BORE HAVING AN INITIAL PRE-FORMED TIVITY. DIAMETER SOMEWHAT GREATER THAN THAT OF A PIPE TO BE EXTENDED THERETHROUGH, AND AN ANNULAR FLEXIBLE RESILIENT MEMBER CIRCUMFERENTIALLY MOUNTED ABOUT THE EXTERIOR OF SAID BODY AND ADAPTED TO RESILIENTLY CONSTRICT SAID BODY CIRCUMFERENTIALLY INTO COMPRESSIVE ENGAGEMENT WITH SAID PIPE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |