US2537244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helve setting for prospectors' tools
Assignee: Individual
•
Filing: 1946-11-26
•
Granted: 1951-01-09
•
Expires: 1966-11-26
Abstract
No abstract record available.
Inventors
- 👤 Christopher L Swett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:14
CPC Classifications
B; B25; B25G; B25G3/00; B25G3/02; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US10500A
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US514308A
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US1441903A
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US982832A
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US2402743A
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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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |