US2955194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated writing board
Assignee: Individual
•
Filing: 1958-11-28
•
Granted: 1960-10-04
•
Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence T Clyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:44
CPC Classifications
B; B42; B42F; B42F9/00; B42F9/001; B42F9/002; B42F9/004; B42D; B42D5/00; B42D5/003; B42D5/005; B42D5/006; B42D5/007; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/203
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1175672A
Cited
US1449509A
Cited
US1498883A
Cited
US1686452A
Cited
US1677977A
Cited
US2161872A
Cited
US2492034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |