US1920189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ARTHUR A BUERGER
•
Filing: 1932-08-27
•
Granted: 1933-08-01
•
Expires: 1952-08-27
Abstract
No abstract record available.
Inventors
- 👤 Dorst James
- 👤 Henry F Weltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:12
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/52; E05B65/5207; E05B65/5215; E05B65/523; E05B65/5238; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5035; Y10T70/5044
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) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |