Patent US2718563A successfully refreshed from Google Patents.
US2718563A
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US
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Assignee: DICTOGRAPH PRODUCTS CO Inc
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Filing: 1951-04-04
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Granted: 1955-09-20
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Emmanuel C Nicholides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:49
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US569908A
Cited
US2059714A
Cited
US2261979A
Cited
US2304339A
Cited
US2417153A
Cited
US2477698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |