Patent US1335453A successfully refreshed from Google Patents.
US1335453A
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US
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Process and apparatus for treating metallic articles
Assignee: Individual
•
Filing: 1918-07-25
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Granted: 1920-03-30
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Expires: 1938-07-25
Abstract
No abstract record available.
Inventors
- 👤 Lars G Nilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:03
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/101; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075
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) | 1923-03-30 | 1923-09-29 | 1924-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-03-30 | 1927-09-29 | 1928-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-03-30 | 1931-09-29 | 1932-03-30 | $7700.00 | Window Closed / Lapsed |