Patent US2394473A successfully refreshed from Google Patents.
US2394473A
Expired / Lapsed
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Seaming machine
Assignee: Individual
•
Filing: 1941-12-12
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Granted: 1946-02-05
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Expires: 1961-12-12
Abstract
No abstract record available.
Inventors
- 👤 Perry Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:26
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8222; B29C66/8226; B29C66/8227; B29C66/83; B29C66/832; B29C66/8324; B29C66/90; B29C66/91; B29C66/92; B29C66/924; B29C66/9241; B29C66/94; B29C66/944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-02-04 | 1949-08-06 | 1950-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-04 | 1953-08-06 | 1954-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-04 | 1957-08-06 | 1958-02-05 | $7700.00 | Window Closed / Lapsed |