US2575987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conducting rubber heating element
Assignee: RCA Corp
•
Filing: 1947-08-29
•
Granted: 1951-11-20
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Expires: 1967-08-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond A York
- 👤 Charles H Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:33
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/005; H05B2203/011; H05B2203/014; H05B2203/016; H05B2203/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1073926A
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US1577981A
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GB490546A
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US2255376A
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US2277772A
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US2340097A
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US2404736A
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US2386095A
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US2456468A
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US2503457A
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US2473183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |