US2521808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming heat activatable material by dielectric heating
Assignee: RCA Corp
•
Filing: 1947-05-26
•
Granted: 1950-09-12
•
Expires: 1967-05-26
Abstract
No abstract record available.
Inventors
- 👤 Harry W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:00
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; B29C33/00; B29C33/0033; B29C33/02; B29C33/06; B29C66/00; B29C66/80; B29C66/81; B29C66/818; B29K; B29K2021/00; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2133810A
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US2341617A
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US2325637A
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US2248840A
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US2304958A
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US2288268A
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US2436732A
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US2421101A
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US2467285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |