US2595054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accessory for use with telephones
Assignee: Individual
•
Filing: 1948-07-03
•
Granted: 1952-04-29
•
Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 Sanford C Chesick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04; F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/041; F16M11/06; F16M11/12; F16M11/14; F16M13/00; F16M13/02; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |