US2533628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable magnifying lens indicator
Assignee: Individual
•
Filing: 1945-12-20
•
Granted: 1950-12-12
•
Expires: 1965-12-20
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:01
CPC Classifications
B; B43; B43L; B43L7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB320249A
Cited
US996039A
Cited
US955114A
Cited
US1260454A
Cited
GB135892A
Cited
US2096524A
Cited
US2086286A
Cited
US2151573A
Cited
US2173306A
Cited
US2264516A
Cited
US2389282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |