Patent US2686414A successfully refreshed from Google Patents.
US2686414A
Expired / Lapsed
US
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Skin treating apparatus
Assignee: TANNERS RES CORP
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Filing: 1950-05-02
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Granted: 1954-08-17
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Expires: 1970-05-02
Abstract
No abstract record available.
Inventors
- 👤 Robert H Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:03
CPC Classifications
C; C14; C14B; C14B1/00; C14B1/02; C14B1/04; C14B1/10; C14B2700/00; C14B2700/02
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) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |