Patent US1460397A successfully refreshed from Google Patents.
US1460397A
Expired / Lapsed
US
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Pipe grapple
Assignee: Individual
•
Filing: 1922-04-21
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Granted: 1923-07-03
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Expires: 1942-04-21
Abstract
No abstract record available.
Inventors
- 👤 John G Zehrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:06
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/12
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) | 1926-07-02 | 1927-01-01 | 1927-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-07-02 | 1931-01-01 | 1931-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-07-02 | 1935-01-01 | 1935-07-03 | $7700.00 | Window Closed / Lapsed |