US3769417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biocidal polymeric compositions for controlling invertebrate pests
Assignee: Shell USA Inc
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Filing: 1971-05-12
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Granted: 1973-10-30
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Expires: 1991-05-12
Abstract
Abstract SLOW RELEASE BIOCIDAL GENERATORS HAVING IMPROVED BIOCIDE RELEASE CHARACTERISTICS COMPRISE A VOLATILE LIQUID BETAHALOVINYL PHOSPHATE BIOCIDE DISPERSED IN A HETEROGENEOUS THERMOPLASTIC POLYMERIC MIXTURE COMPRISING AN ETHYLENEVINYL ACETATE COPOLYMER AND A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYSTYRENE AND A BLOCK COPOLYMER OF A CONJUGATED DIENE WITH A MONO-ALPHAALKENYL ARENE.
Inventors
- 👤 Breen A Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:51
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/08; A01N25/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |