US2789786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-operate hair clipping device
Assignee: Individual
•
Filing: 1953-08-07
•
Granted: 1957-04-23
•
Expires: 1973-08-07
Abstract
No abstract record available.
Inventors
- 👤 Daufus H Mefford
- 👤 James E Mefford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:11
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/28; B26B19/34; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US512009A
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US987820A
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US1064053A
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US1878747A
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DE549704C
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US2044830A
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US2292453A
Cited
US2690293A
Cited
US2703904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |