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US2743498A
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Jewelry clasp
Assignee: Coro Inc
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Filing: 1954-06-28
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Granted: 1956-05-01
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 John P Mcvinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:24
CPC Classifications
A; A44; A44C; A44C7/00; A44C7/004; A44C7/006; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44376
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2583988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |