US1746125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-regulation system for frequengy control or stabilizing apparatus
Assignee: NAT ELECTRICAL SUPPLY Co
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Filing: 1929-03-09
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Granted: 1930-02-04
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Expires: 1949-03-09
Abstract
No abstract record available.
Inventors
- 👤 Carlos B Mirick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:06
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; H03; H03L; H03L1/00; H03L1/02; H03L1/04
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) | 1933-02-03 | 1933-08-05 | 1934-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-03 | 1937-08-05 | 1938-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-03 | 1941-08-05 | 1942-02-04 | $7700.00 | Window Closed / Lapsed |