US2135933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental instrument
Assignee: Chayes Dental Instrument Corp
•
Filing: 1935-12-14
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Granted: 1938-11-08
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Expires: 1955-12-14
Abstract
No abstract record available.
Inventors
- 👤 James H Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:10
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/005; A61C1/00; A61C1/02; A61C1/07; A61C1/08; A61C1/18; A61C1/185; A61C3/00; A61C3/08; A61H; A61H13/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18416
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) | 1941-11-07 | 1942-05-09 | 1942-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-07 | 1946-05-09 | 1946-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-07 | 1950-05-09 | 1950-11-08 | $7700.00 | Window Closed / Lapsed |