US2777098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically controlled electric counting apparatus
Assignee: Siemens Schuckertwerke AG
•
Filing: 1952-05-16
•
Granted: 1957-01-08
•
Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Duffing Paul
- 👤 Conradi Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
H; H03; H03K; H03K25/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1914220A
Cited
US1997179A
Cited
US1981921A
Cited
US2216595A
Cited
US2259647A
Cited
US2430457A
Cited
US2518965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |