Patent US1815500A successfully refreshed from Google Patents.
US1815500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud extractor
Assignee: Individual
•
Filing: 1930-03-17
•
Granted: 1931-07-21
•
Expires: 1950-03-17
Abstract
No abstract record available.
Inventors
- 👤 Elmer M Doan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:25
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/10; B25B23/103
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) | 1934-07-20 | 1935-01-19 | 1935-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-20 | 1939-01-19 | 1939-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-20 | 1943-01-19 | 1943-07-21 | $7700.00 | Window Closed / Lapsed |