US2535834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clip for hearing aid cases
Assignee: MAICO Co Inc
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Filing: 1949-01-10
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Granted: 1950-12-26
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Expires: 1969-01-10
Abstract
No abstract record available.
Inventors
- 👤 Elroy W Born
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:48
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/04; B; B43; B43K; B43K25/00; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1376; Y10T24/1394
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |