US2522060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harpoon gun
Assignee: Individual
•
Filing: 1947-01-20
•
Granted: 1950-09-12
•
Expires: 1967-01-20
Abstract
No abstract record available.
Inventors
- 👤 Alexander C Ridland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:05
CPC Classifications
F; F41; F41B; F41B7/00; F41B7/04; A; A01; A01K; A01K81/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US213976A
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US966665A
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US1235613A
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US1277553A
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US1290898A
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US1681192A
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US1993150A
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US2000146A
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US2238504A
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US2267065A
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US2404249A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |