US1999488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental contraangle hand piece
Assignee: Individual
•
Filing: 1933-04-11
•
Granted: 1935-04-30
•
Expires: 1953-04-11
Abstract
No abstract record available.
Inventors
- 👤 Max E Swisher
- 👤 Frank B Mueldener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:14
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/14; A61C1/141; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/32983; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7058
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) | 1938-04-29 | 1938-10-29 | 1939-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-29 | 1942-10-29 | 1943-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-29 | 1946-10-29 | 1947-04-30 | $7700.00 | Window Closed / Lapsed |