US2609912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hopper for selectively dispensing tube bases
Assignee: RCA Corp
•
Filing: 1948-09-16
•
Granted: 1952-09-09
•
Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 William T Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1442; B65G47/1471
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1972489A
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US2159318A
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US2190970A
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US2354939A
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US2247602A
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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) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |