US3383239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air impingement apparatus and process to control edge flow in coating procedures
Assignee: EIDP Inc
•
Filing: 1964-04-01
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Granted: 1968-05-14
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr David A Christman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/04; D; D06; D06B; D06B15/00; D06B15/09; G; G03; G03C; G03C1/00; G03C1/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2289753A
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US2389459A
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US3088218A
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US2996811A
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US2995469A
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US3068891A
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US3260577A
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US3178305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |