US3366736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens magnifier apparatus
Assignee: APT FINANCAL CORP A CORPOF NV
•
Filing: 1964-09-21
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Granted: 1968-01-30
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Alvin A Snaper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:29
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2055696A
Cited
US2580240A
Cited
US2909770A
Cited
US2818765A
Cited
FR1263557A
Cited
US3095475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |