US2696754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding stereoscope
Assignee: Individual
•
Filing: 1951-07-28
•
Granted: 1954-12-14
•
Expires: 1971-07-28
Abstract
No abstract record available.
Inventors
- 👤 Paul O Mamock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/20; G02B30/34; G02B30/37
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1308207A
Cited
FR337737A
Cited
US871103A
Cited
US906774A
Cited
US1221836A
Cited
AT84145B
Cited
GB173849A
Cited
US1993101A
Cited
US2039709A
Cited
US2190646A
Cited
US2321004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |