Patent US2589442A successfully refreshed from Google Patents.
US2589442A
Expired / Lapsed
US
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Mold for producing sliding clasp fasteners
Assignee: Individual
•
Filing: 1946-04-17
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Granted: 1952-03-18
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Expires: 1966-04-17
Abstract
No abstract record available.
Inventors
- 👤 Siegrist John Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:54
CPC Classifications
B; B29; B29D; B29D5/00; B29D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2074368A
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US2133019A
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US2200634A
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US2360011A
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US2374292A
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US2351582A
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US2403739A
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US2385020A
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US2415395A
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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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |