Patent US3521049A successfully refreshed from Google Patents.
US3521049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-luminous jewelry
Assignee: Individual
•
Filing: 1967-09-27
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Granted: 1970-07-21
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Gordon W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3382; H02M3/3384; F; F21; F21L; F21L2/00; F21V; F21V33/00; F21V9/00; F21V9/40; F21W; F21W2131/00; F21W2131/40; F21W2131/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1030516A
Cited
US2374375A
Cited
US3384740A
Cited
US3413458A
Cited
US3450872A
Cited
US3383503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |