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 06:52
CPC Classifications
C; C25; C25D; C25D13/00; C25D13/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1336052A
Cited
US799402A
Cited
US1168281A
Cited
US1208584A
Cited
US1243098A
Cited
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 |