Patent US2464157A successfully refreshed from Google Patents.
US2464157A
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Assignee: RCA Corp
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Filing: 1944-06-28
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Granted: 1949-03-08
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Expires: 1964-06-28
Abstract
No abstract record available.
Inventors
- 👤 Charles L Scheer
- 👤 Jr Willis Fleisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:41
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/12; B29C39/00; B29C39/02; B29C39/10; B29C70/00; B29C70/68; B29C37/00; B29C37/005; B29L; B29L2031/00; B29L2031/34; B29L2031/3406; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US43666A
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US85529A
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US2079784A
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US2166205A
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US2237328A
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US2259524A
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US2274444A
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US2313985A
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US2342037A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |