US2761558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for microscope slides
Assignee: Individual
•
Filing: 1954-08-23
•
Granted: 1956-09-04
•
Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jr James Douglas Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/18; G; G02; G02B; G02B21/00; G02B21/34
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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |