US2650269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary pad attachment for telephones
Assignee: Individual
•
Filing: 1951-02-21
•
Granted: 1953-08-25
•
Expires: 1971-02-21
Abstract
No abstract record available.
Inventors
- 👤 Webb Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:19
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1331345A
Cited
US1464455A
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US1741668A
Cited
FR773081A
Cited
US2078877A
Cited
US2045674A
Cited
US2507375A
Cited
US2551247A
Cited
US2520416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |