US2901803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slider for helical-wire slide fastener
Assignee: Opti Werk & Co GmbH
•
Filing: 1956-06-28
•
Granted: 1959-09-01
•
Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Porepp Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:27
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/308; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2561; Y10T24/2566; Y10T24/257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA508942A
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BE498008A
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US1721144A
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US1562253A
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DE577440C
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US2265353A
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US2303870A
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US2306873A
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GB625181A
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US2568163A
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US2721367A
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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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |