Patent US2947564A successfully refreshed from Google Patents.
US2947564A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1957-08-26
•
Granted: 1960-08-02
•
Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Simon P Winther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:01
CPC Classifications
B; B25; B25J; B25J1/00; B25J1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367578A
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US1042842A
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US1537470A
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US1858133A
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US1979688A
Cited
US2302691A
Cited
US2320611A
Cited
US2555381A
Cited
US2601351A
Cited
US2551486A
Cited
US2720409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |