US2983905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for signaling individual impulses of short duration
Assignee: Siemens and Halske AG
•
Filing: 1956-01-25
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Granted: 1961-05-09
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Expires: 1976-01-25
Abstract
No abstract record available.
Inventors
- 👤 Buser Rudolf
- 👤 Kaufmann Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:45
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014; G11C19/00; G11C19/02; G11C19/04; H; H03; H03K; H03K21/00; H03K3/00; H03K3/02; H03K3/45; H03K5/00; H03K5/156; H04; H04L; H04L12/00; H04L12/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |