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Patent US3050767A successfully refreshed from Google Patents.
US3050767A
Expired / Lapsed
US
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Vacuum system and nozzle for removing cut hair
Assignee: Individual
•
Filing: 1961-10-12
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Granted: 1962-08-28
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 James L Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:43
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/44
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |