Patent US2949683A successfully refreshed from Google Patents.
US2949683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle display device
Assignee: Individual
•
Filing: 1958-03-14
•
Granted: 1960-08-23
•
Expires: 1978-03-14
Abstract
No abstract record available.
Inventors
- 👤 Anthony D Glover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:06
CPC Classifications
A; A47; A47F; A47F7/00; A47F7/02; A47F7/021; Y; Y10; Y10S; Y10S248/00; Y10S248/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US547470A
Cited
US2411361A
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US2467251A
Cited
US2468437A
Cited
US2665011A
Cited
US2713947A
Cited
US2884219A
Cited
US2884220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |