Patent US732479A successfully refreshed from Google Patents.
US732479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible auger.
Assignee: Individual
•
Filing: 1903-03-14
•
Granted: 1903-06-30
•
Expires: 1923-03-14
Abstract
No abstract record available.
Inventors
- 👤 William I Wheeler
- 👤 John J Bull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:00
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/003
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) | 1906-06-29 | 1906-12-29 | 1907-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-29 | 1910-12-29 | 1911-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-29 | 1914-12-29 | 1915-06-30 | $7700.00 | Window Closed / Lapsed |