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US3449375A
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US
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N,n - bis(2,3 - epoxypropyl)trihaloanilines and compositions containing the same
Assignee: Shell USA Inc
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Filing: 1966-05-27
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Granted: 1969-06-10
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Expires: 1986-05-27
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Newey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:44
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/36; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2884406A
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US2951822A
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US3016362A
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US3058946A
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US3218369A
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US3280216A
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US3320209A
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US3268619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |