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US2864525A
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Assignee: BESS E HAMLIN
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Filing: 1955-04-25
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Granted: 1958-12-16
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 Jerry F Hamlin
- 👤 Roy M Magnuson
- 👤 Ralph K Daugherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:04
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/02; B21J15/04; B21J15/041; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421474A
Cited
US1174937A
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US2400354A
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US2416474A
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US2389479A
Cited
US2595551A
Cited
US2622781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |