US1289537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product of coating metal structures.
Assignee: Individual
•
Filing: 1914-05-08
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Granted: 1918-12-31
•
Expires: 1934-05-08
Abstract
No abstract record available.
Inventors
- 👤 Norman John Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:04
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C43/00; B29C43/02; B29C43/20; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24372; Y10T428/24421; Y10T428/2443; Y10T428/31504; Y10T428/31678; Y10T428/31717
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-12-30 | 1922-07-01 | 1922-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-12-30 | 1926-07-01 | 1926-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-12-30 | 1930-07-01 | 1930-12-31 | $7700.00 | Window Closed / Lapsed |