US1543579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hot-air-syringe outlet
Assignee: Individual
•
Filing: 1921-10-03
•
Granted: 1925-06-23
•
Expires: 1941-10-03
Abstract
No abstract record available.
Inventors
- 👤 William J Lauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:38
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/022
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) | 1928-06-22 | 1928-12-22 | 1929-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-06-22 | 1932-12-22 | 1933-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-06-22 | 1936-12-22 | 1937-06-23 | $7700.00 | Window Closed / Lapsed |