Patent US2514760A successfully refreshed from Google Patents.
US2514760A
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US
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Assignee: Individual
•
Filing: 1948-09-02
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Granted: 1950-07-11
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Expires: 1968-09-02
Abstract
No abstract record available.
Inventors
- 👤 George G Hanson
- 👤 Harold R Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:07
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/12; E21B31/18; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3969; Y10T24/3976; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1031637A
Cited
US1829760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |