Patent US2343989A successfully refreshed from Google Patents.
US2343989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Registering system
Assignee: Teleregister Corp
•
Filing: 1940-05-31
•
Granted: 1944-03-14
•
Expires: 1960-05-31
Abstract
No abstract record available.
Inventors
- 👤 Harold F May
- 👤 George L Bush
- 👤 Frischknecht Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/02; G07C3/04; G07C3/045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-03-14 | 1947-09-13 | 1948-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-14 | 1951-09-13 | 1952-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-14 | 1955-09-13 | 1956-03-14 | $7700.00 | Window Closed / Lapsed |