US2827720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflective animated displays
Assignee: CHARLES V WELTY
•
Filing: 1953-10-06
•
Granted: 1958-03-25
•
Expires: 1973-10-06
Abstract
No abstract record available.
Inventors
- 👤 Matthew H Phillippi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:25
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/12; G09F19/14; G09F13/00; G09F13/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US587007A
Cited
US1407461A
Cited
GB176097A
Cited
US1914142A
Cited
GB455738A
Cited
US2251386A
Cited
US2121374A
Cited
US2422256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |