Patent US2543136A successfully refreshed from Google Patents.
US2543136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television apparatus
Assignee: Avco Manufacturing Corp
•
Filing: 1947-05-08
•
Granted: 1951-02-27
•
Expires: 1967-05-08
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:22
CPC Classifications
A; A47; A47B; A47B81/00; A47B81/06; A47B81/061; A47B81/065; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US343041A
Cited
US873471A
Cited
US1481640A
Cited
US2304490A
Cited
US2441575A
Cited
US2400638A
Cited
US2413922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |