US2983886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mount for ring cores
Assignee: RCA Corp
•
Filing: 1955-12-30
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Granted: 1961-05-09
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Expires: 1975-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence H Heckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/06; H01F17/062; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1763115A
Cited
US2434511A
Cited
US2512796A
Cited
US2654142A
Cited
US2699531A
Cited
US2869089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |