Patent US3368652A successfully refreshed from Google Patents.
US3368652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polariscope
Assignee: BADD Co
•
Filing: 1964-03-16
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Granted: 1968-02-13
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 George A Klatchko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:33
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/24; G01L1/241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1878333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |