US2330355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating system
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1941-04-26
•
Granted: 1943-09-28
•
Expires: 1961-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harry E Hershey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008
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) | 1946-09-27 | 1947-03-29 | 1947-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-27 | 1951-03-29 | 1951-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-27 | 1955-03-29 | 1955-09-28 | $7700.00 | Window Closed / Lapsed |