US2603006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonetic sound-producing dictionary apparatus
Assignee: ELLAMAC Inc
•
Filing: 1948-08-03
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Granted: 1952-07-15
•
Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 Chester M Macchesney
- 👤 Ella B Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:15
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191027763A
Cited
US2275609A
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US2228782A
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US2357455A
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US2369572A
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US2427388A
Cited
US2457699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |