US978910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mouth-illuminator.
Assignee: Buffalo Dental Manufacturing Co Inc
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Filing: 1910-06-30
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Granted: 1910-12-20
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Expires: 1930-06-30
Abstract
No abstract record available.
Inventors
- 👤 Theodore G Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1913-12-19 | 1914-06-20 | 1914-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-19 | 1918-06-20 | 1918-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-19 | 1922-06-20 | 1922-12-20 | $7700.00 | Window Closed / Lapsed |