US3013467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microscopy apparatus
Assignee: Individual
•
Filing: 1957-11-07
•
Granted: 1961-12-19
•
Expires: 1977-11-07
Abstract
No abstract record available.
Inventors
- 👤 Minsky Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:29
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/002; G02B21/0024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2158391A
Cited
US2257774A
Cited
US2661902A
Cited
US2731202A
Cited
US2847162A
Cited
US2775159A
Cited
US2791697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |