US2700075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary device for telephone mouthpieces and earpieces
Assignee: Individual
•
Filing: 1951-10-18
•
Granted: 1955-01-18
•
Expires: 1971-10-18
Abstract
No abstract record available.
Inventors
- 👤 Estol P Korn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:25
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1833643A
Cited
US1946617A
Cited
US2143675A
Cited
US2250162A
Cited
US2212349A
Cited
US2291030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |