Patent US2178620A successfully refreshed from Google Patents.
Patent US4443736A successfully refreshed from Google Patents.
Patent US2473106A successfully refreshed from Google Patents.
US2473106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone handset supporting fixture
Assignee: Individual
•
Filing: 1945-12-14
•
Granted: 1949-06-14
•
Expires: 1965-12-14
Abstract
No abstract record available.
Inventors
- 👤 Roderick R Mathieson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:59
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1847649A
Cited
US1959572A
Cited
US2020084A
Cited
US2294989A
Cited
US2310032A
Cited
US2382125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |