US2981827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-reflecting lens
Assignee: Individual
•
Filing: 1956-12-24
•
Granted: 1961-04-25
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Orsatti
- 👤 Lee W Hoggan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:26
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1675431A
Cited
US1588816A
Cited
US1840098A
Cited
US2012933A
Cited
US1847134A
Cited
GB380676A
Cited
US2220861A
Cited
US2459693A
Cited
US2680205A
Cited
US2798147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |