Patent US5528666A successfully refreshed from Google Patents.
US2548827A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1948-07-20
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Granted: 1951-04-10
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Expires: 1968-07-20
Abstract
No abstract record available.
Inventors
- 👤 Fred C Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:38
CPC Classifications
B; B25; B25C; B25C7/00; A; A41; A41H; A41H37/00; A41H37/005; B25C5/00; B25C5/02; B25C5/0207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308327A
Cited
US2069601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |