US3540907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-dip metal coating process
Assignee: Dow Chemical Co
•
Filing: 1968-07-03
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Granted: 1970-11-17
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Expires: 1988-07-03
Abstract
No abstract record available.
Inventors
- 👤 William Ross Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:59
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/02; C23C2/024; C23C2/026; C23C2/04; C23C2/08; C23C2/10; C23F; C23F15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2145827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |