US3498293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orientation apparatus for human subjects
Assignee: Individual
•
Filing: 1966-10-06
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Granted: 1970-03-03
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jess Oppenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:30
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/001; A; A61; A61B; A61B3/00; A61B3/02; A61F; A61F9/00; A61F9/02; A61F9/022; G09; G09B; G09B21/00; G09B21/001; G09B21/007
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |