US2151877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus
Assignee: Individual
•
Filing: 1935-11-20
•
Granted: 1939-03-28
•
Expires: 1955-11-20
Abstract
No abstract record available.
Inventors
- 👤 Clinton L Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:00
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; A; A47; A47F; A47F5/00; F16M11/20; F16M11/2007; F16M11/2021; F16M11/2085; F16M11/24; F16M13/00; F16M13/02; F16M2200/00; F16M2200/02; F16M2200/025; F16M2200/04; F16M2200/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-03-27 | 1942-09-26 | 1943-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-27 | 1946-09-26 | 1947-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-27 | 1950-09-26 | 1951-03-28 | $7700.00 | Window Closed / Lapsed |