Patent US3247841A successfully refreshed from Google Patents.
Patent US2403873A successfully refreshed from Google Patents.
US2403873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse emitter
Assignee: NCR Voyix Corp
•
Filing: 1942-08-06
•
Granted: 1946-07-09
•
Expires: 1962-08-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Mumma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:10
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/16; G08C19/18; H; H03; H03K; H03K3/00; H03K3/78
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) | 1949-07-08 | 1950-01-07 | 1950-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-08 | 1954-01-07 | 1954-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-08 | 1958-01-07 | 1958-07-09 | $7700.00 | Window Closed / Lapsed |