US2521851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ornamental lamp
Assignee: Individual
•
Filing: 1948-03-30
•
Granted: 1950-09-12
•
Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Harry J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:43
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/004; B; B60; B60Q; B60Q7/00; F21W; F21W2121/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |