US1440401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article-supporting means
Assignee: RITTER DENTAL Manufacturing Co
•
Filing: 1920-07-14
•
Granted: 1923-01-02
•
Expires: 1940-07-14
Abstract
No abstract record available.
Inventors
- 👤 Adam J May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/04; A47C1/11; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32032; Y10T403/32254; Y10T403/32262; Y10T403/32311
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) | 1926-01-01 | 1926-07-03 | 1927-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-01 | 1930-07-03 | 1931-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-01 | 1934-07-03 | 1935-01-02 | $7700.00 | Window Closed / Lapsed |