Patent US1821301A successfully refreshed from Google Patents.
US1821301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin for artificial teeth
Assignee: Dentists Supply Company of New York
•
Filing: 1928-09-15
•
Granted: 1931-09-01
•
Expires: 1948-09-15
Abstract
No abstract record available.
Inventors
- 👤 Albert E Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/10; A61C13/1003; A61C13/1009; B; B23; B23K; B23K3/00; B23K3/06; B23K3/0607; B23K3/063; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49567
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-08-31 | 1935-03-02 | 1935-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-31 | 1939-03-02 | 1939-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-31 | 1943-03-02 | 1943-09-01 | $7700.00 | Window Closed / Lapsed |