US2530738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating metal surfaces
Assignee: Union Carbide Corp
•
Filing: 1947-02-04
•
Granted: 1950-11-21
•
Expires: 1967-02-04
Abstract
No abstract record available.
Inventors
- 👤 Clayton I Spessard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:28
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1912372A
Cited
US1904417A
Cited
US2245708A
Cited
US2270662A
Cited
US2279771A
Cited
US2427513A
Cited
US2431078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |