Patent US3369932A successfully refreshed from Google Patents.
US3369932A
Expired / Lapsed
US
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Coating with mixtures of wax and ethylene copolymer emulsions
Assignee: Shell USA Inc
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Filing: 1964-07-16
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Granted: 1968-02-20
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Webster M Sawyer
- 👤 Warren C Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:51
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; C; C09; C09D; C09D123/00; C09D123/02; C09D123/16; C09D191/00; C09D191/06; D21H19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2099726A
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US2898293A
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US2926062A
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US3065099A
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US3267060A
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US3210305A
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US3227669A
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US3312564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |