Patent US946579A successfully refreshed from Google Patents.
US946579A
Expired / Lapsed
US
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Means for attaching surveyor's plumb-lines to the roofs, sides, or floors of mine-workings, tunnels, or for similar purposes.
Assignee: Individual
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Filing: 1909-05-28
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Granted: 1910-01-18
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Expires: 1929-05-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas Peacock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:37
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02
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) | 1913-01-17 | 1913-07-19 | 1914-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-01-17 | 1917-07-19 | 1918-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-01-17 | 1921-07-19 | 1922-01-18 | $7700.00 | Window Closed / Lapsed |