Patent US2233071A successfully refreshed from Google Patents.
US2233071A
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US
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Jewelry clasp
Assignee: Cohn & Rosenberger Inc
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Filing: 1940-02-09
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Granted: 1941-02-25
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Expires: 1960-02-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Bangs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:36
CPC Classifications
A; A44; A44C; A44C5/00; A44C5/18; A44C5/20; A44C5/2071; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/53; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T24/45183; Y10T24/45188; Y10T24/45225; Y10T24/45602; Y10T24/45775
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-02-25 | 1944-08-26 | 1945-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-25 | 1948-08-26 | 1949-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-25 | 1952-08-26 | 1953-02-25 | $7700.00 | Window Closed / Lapsed |