Patent US2496820A successfully refreshed from Google Patents.
US2496820A
Expired / Lapsed
US
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Corded seam
Assignee: Individual
•
Filing: 1946-12-24
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Granted: 1950-02-07
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Expires: 1966-12-24
Abstract
No abstract record available.
Inventors
- 👤 Creston A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:22
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/02; A44; A44B; A44B19/00; A44B19/02; A44B19/24; A44B19/26; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/249921; Y10T428/249923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314408A
Cited
US1575279A
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US1657877A
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US1830147A
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US2011512A
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US2229550A
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US2290007A
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US2440138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |