US3539489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating process and apparatus
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1967-03-13
•
Granted: 1970-11-10
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Norman Morin Ness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:13
CPC Classifications
C; C25; C25D; C25D13/00; C25D13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336052A
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US799402A
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US1168281A
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US1208584A
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US1243098A
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US1950096A
Cited
US2011328A
Cited
US2878171A
Cited
US2887447A
Cited
US3254004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |