US2728968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustment means for spring tension clips of jewelry
Assignee: Individual
•
Filing: 1952-10-27
•
Granted: 1956-01-03
•
Expires: 1972-10-27
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Scharff
- 👤 Marc C Walschaert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:01
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)
US340831A
Cited
US842987A
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US2230984A
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US2391635A
Cited
US2503167A
Cited
FR1009894A
Cited
US2557200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |