Patent US3412575A successfully refreshed from Google Patents.
US3412575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jewelry article including thin metal and dielectric films
Assignee: ESTELLE H FELDMAN
•
Filing: 1966-01-18
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Granted: 1968-11-26
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Feldman Charles
- 👤 Estelle H Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:03
CPC Classifications
A; A44; A44C; A44C1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US227377A
Cited
US2143084A
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US2181926A
Cited
US2350421A
Cited
US2535807A
Cited
US2778208A
Cited
US2999034A
Cited
US3338730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |