Patent US2994848A successfully refreshed from Google Patents.
US2994848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor device
Assignee: Illinois Tool Works Inc
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Filing: 1958-08-20
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Granted: 1961-08-01
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Expires: 1978-08-20
Abstract
No abstract record available.
Inventors
- 👤 Charles C Rayburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:03
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/16; H01C7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2474988A
Cited
US2632831A
Cited
US2717942A
Cited
US2859315A
Cited
US2726304A
Cited
US2864924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |