US2681731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread and zipper package
Assignee: Coats and Clark Inc
•
Filing: 1950-11-02
•
Granted: 1954-06-22
•
Expires: 1970-11-02
Abstract
No abstract record available.
Inventors
- 👤 David B Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:52
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B65D85/671; B65D85/672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US736808A
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US1470154A
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US2082546A
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US2232286A
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US2285270A
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US2331675A
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US2537940A
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US2486247A
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US2481095A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |