US776523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe-grab.
Assignee: American Well Works
•
Filing: 1903-02-21
•
Granted: 1904-12-06
•
Expires: 1923-02-21
Abstract
No abstract record available.
Inventors
- 👤 Fred J Lukins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:47
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/12; E21B31/20
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) | 1907-12-06 | 1908-06-06 | 1908-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-06 | 1912-06-06 | 1912-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-06 | 1916-06-06 | 1916-12-06 | $7700.00 | Window Closed / Lapsed |