US2513442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counting arrangement
Assignee: Automatic Telephone and Electric Co Ltd
•
Filing: 1948-04-26
•
Granted: 1950-07-04
•
Expires: 1968-04-26
Abstract
No abstract record available.
Inventors
- 👤 Baker George Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:59
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/22; H; H03; H03K; H03K29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR857806A
Cited
US2267827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |