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US3022803A
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US
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Method of producing slide fasteners
Assignee: William Prym Werke GmbH and Co KG
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Filing: 1960-06-23
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Granted: 1962-02-27
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Berberich Erich
- 👤 Gilliam Johannes
- 👤 Frowein Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
B; B29; B29D; B29D5/00; A; A44; A44B; A44B19/00; A44B19/42; A44B19/52; A44B19/54; D; D03; D03D; D03D1/00; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2504079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |