US2236134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of transmission of electric signals
Assignee: International Standard Electric Corp
•
Filing: 1939-01-07
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Granted: 1941-03-25
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Expires: 1959-01-07
Abstract
No abstract record available.
Inventors
- 👤 Gloess Paul Francois Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:47
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/20; H04B3/23; H03; H03H; H03H7/00; H03H7/30; H03H7/32; H04B1/00; H04B1/06; H04B1/10; H04B1/12; H04B7/00; H04B7/02; H04B7/12
Claims Analysis
Total Claims: 0
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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) | 1944-03-24 | 1944-09-23 | 1945-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-24 | 1948-09-23 | 1949-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-24 | 1952-09-23 | 1953-03-25 | $7700.00 | Window Closed / Lapsed |