US2531911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shield can with spring attachment means
Assignee: PALNUT Co
•
Filing: 1945-12-15
•
Granted: 1950-11-28
•
Expires: 1965-12-15
Abstract
No abstract record available.
Inventors
- 👤 Edward L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:42
CPC Classifications
F; F16; F16B; F16B9/00; F16B9/05; F16B9/056; F16B9/058; H; H05; H05K; H05K7/00; H05K7/02; H05K7/12; F16B2200/00; F16B2200/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US345337A
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US2023095A
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US2097993A
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US2151896A
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US2169708A
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US2058733A
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US2144910A
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US2284004A
Cited
US2353933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |