US2714171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load stabilized electric system
Assignee: Iron Fireman Manufacturing Co
•
Filing: 1953-07-16
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Granted: 1955-07-26
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Expires: 1973-07-16
Abstract
No abstract record available.
Inventors
- 👤 Errol F Kingsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:55
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/12; H02J3/14; H02H; H02H3/00; H02H3/02; H02H3/033; H02J2105/00; H02J2105/50; H02J2105/52; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y02B70/3225; Y04; Y04S; Y04S20/00; Y04S20/20; Y04S20/222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2348058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |