US3384718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone handset housing
Assignee: AT&T Inc
•
Filing: 1964-05-05
•
Granted: 1968-05-21
•
Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Leslie N Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:47
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/0202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US398610A
Cited
US3123676A
Cited
US2452830A
Cited
US2868888A
Cited
US2916563A
Cited
US3073911A
Cited
US3303290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |