US2640188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control pulse distributing system
Assignee: Individual
•
Filing: 1949-12-20
•
Granted: 1953-05-26
•
Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Kienast Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:29
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/32; G; G08; G08C; G08C19/00; G08C19/16; G08C19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1957672A
Cited
US1890877A
Cited
US1890878A
Cited
US2053749A
Cited
US2103296A
Cited
US2067151A
Cited
US2314187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |