Patent US2165236A successfully refreshed from Google Patents.
Patent US2676738A successfully refreshed from Google Patents.
US2676738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harness for hearing aid units
Assignee: Individual
•
Filing: 1952-10-03
•
Granted: 1954-04-27
•
Expires: 1972-10-03
Abstract
No abstract record available.
Inventors
- 👤 Herrick Helen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:12
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/14; A45F3/04; A45F2003/045; Y; Y10; Y10S; Y10S224/00; Y10S224/902; Y10S224/929; Y10S224/93
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1486470A
Cited
US1587716A
Cited
US2089402A
Cited
GB510026A
Cited
US2156504A
Cited
US2372971A
Cited
US2441115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |