US2569414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of metal-free stripes on metal-coated sheet material
Assignee: National Research Corp
•
Filing: 1949-05-10
•
Granted: 1951-09-25
•
Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Godley Philip
- 👤 Pietron William O Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/06; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T428/00; Y10T428/12; Y10T428/12333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US692834A
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US692989A
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US1553727A
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US1909079A
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US2066588A
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US2141869A
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US2248057A
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US2372508A
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US2435441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |