US2872123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toroidal core rotator assembly
Assignee: Individual
•
Filing: 1957-10-07
•
Granted: 1959-02-03
•
Expires: 1977-10-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1841609A
Cited
US2467643A
Cited
DE908281C
Cited
US2727698A
Cited
US2721708A
Cited
FR1107336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |