US1753610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for annulling the effect of stray fields on radio receiving systems
Assignee: INDUSTRIELLE DES PROCEDES W A LOTH Ste
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Filing: 1923-10-03
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Granted: 1930-04-08
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Expires: 1943-10-03
Abstract
No abstract record available.
Inventors
- 👤 Loth William Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:56
CPC Classifications
H; H04; H04B; H04B15/00; H04B15/02; H04B15/025
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) | 1933-04-07 | 1933-10-07 | 1934-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-04-07 | 1937-10-07 | 1938-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-04-07 | 1941-10-07 | 1942-04-08 | $7700.00 | Window Closed / Lapsed |