US3567420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of certain polyamines as antimicrobial agents
Assignee: Shell USA Inc
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Filing: 1969-04-08
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Granted: 1971-03-02
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Expires: 1989-04-08
Abstract
Abstract USE OF CERTAIN REACTION PRODUCTS OF AMINES AND POLYEPIHALOHYDRINS, SALTS THEREOF AND CORRESPONDING QUATERNARY AMMONIUM DERIVATIVES FOR CONTROLLING MICROORGANISMS.
Inventors
- 👤 Marvin Legator
- 👤 Calvin A Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:46
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; A; A01; A01N; A01N33/00; A01N33/02; A01N33/08; C02; C02F; C02F1/00; C02F1/50; D; D21; D21C; D21C3/00; D21C3/22; D21C3/28
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |